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220013021012131 = 1911579632684849
BaseRepresentation
bin110010000001100111000101…
…111101101010000010100011
31001212000001001201102111220201
4302001213011331222002203
5212314143131334342011
62055532330405050031
764225262522200054
oct6201470575520243
91055001051374821
10220013021012131
1164114aa86a7536
1220813bb76b6917
13959c1a60c0609
143c4898931a72b
151a6809c127cc1
hexc819c5f6a0a3

220013021012131 has 4 divisors (see below), whose sum is σ = 231592653697000. Its totient is φ = 208433388327264.

The previous prime is 220013021012089. The next prime is 220013021012167. The reversal of 220013021012131 is 131210120310022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-220013021012131 is a prime.

It is a super-2 number, since 2×2200130210121312 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 11579632684849 = 220013021012131 / (2 + 2 + 0 + 0 + 1 + 3 + 0 + 2 + 1 + 0 + 1 + 2 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220013021012099 and 220013021012108.

It is not an unprimeable number, because it can be changed into a prime (220013021012171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5789816342406 + ... + 5789816342443.

It is an arithmetic number, because the mean of its divisors is an integer number (57898163424250).

Almost surely, 2220013021012131 is an apocalyptic number.

220013021012131 is a deficient number, since it is larger than the sum of its proper divisors (11579632684869).

220013021012131 is a wasteful number, since it uses less digits than its factorization.

220013021012131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11579632684868.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 220013021012131 its reverse (131210120310022), we get a palindrome (351223141322153).

The spelling of 220013021012131 in words is "two hundred twenty trillion, thirteen billion, twenty-one million, twelve thousand, one hundred thirty-one".

Divisors: 1 19 11579632684849 220013021012131