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10131023131 = 22345430597
BaseRepresentation
bin10010110111101101…
…10010010100011011
3222011001022022001221
421123312302110123
5131222020220011
64353142552511
7506025163405
oct113366622433
928131268057
1010131023131
114329775699
121b68a38737
13c55ba3858
146c170bb75
153e463e971
hex25bdb251b

10131023131 has 4 divisors (see below), whose sum is σ = 10176453952. Its totient is φ = 10085592312.

The previous prime is 10131023099. The next prime is 10131023143. The reversal of 10131023131 is 13132013101.

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

It is a cyclic number.

It is not a de Polignac number, because 10131023131 - 25 = 10131023099 is a prime.

It is a super-2 number, since 2×101310231312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10131023171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22715076 + ... + 22715521.

It is an arithmetic number, because the mean of its divisors is an integer number (2544113488).

Almost surely, 210131023131 is an apocalyptic number.

10131023131 is a deficient number, since it is larger than the sum of its proper divisors (45430821).

10131023131 is an equidigital number, since it uses as much as digits as its factorization.

10131023131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45430820.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 10131023131 its reverse (13132013101), we get a palindrome (23263036232).

It can be divided in two parts, 1013 and 1023131, that added together give a square (1024144 = 10122).

The spelling of 10131023131 in words is "ten billion, one hundred thirty-one million, twenty-three thousand, one hundred thirty-one".

Divisors: 1 223 45430597 10131023131