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23021132131 = 171354184243
BaseRepresentation
bin10101011100001010…
…101001100101100011
32012102101022200102101
4111130022221211203
5334121402212011
614324210431231
71443325252204
oct253412514543
965371280371
1023021132131
119843913338
124565892517
13222b57a99a
14118562d5ab
158eb0d62c1
hex55c2a9963

23021132131 has 4 divisors (see below), whose sum is σ = 24375316392. Its totient is φ = 21666947872.

The previous prime is 23021132093. The next prime is 23021132153. The reversal of 23021132131 is 13123112032.

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 23021132131 - 221 = 23019034979 is a prime.

It is a super-2 number, since 2×230211321312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23021132099 and 23021132108.

It is not an unprimeable number, because it can be changed into a prime (23021132161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677092105 + ... + 677092138.

It is an arithmetic number, because the mean of its divisors is an integer number (6093829098).

Almost surely, 223021132131 is an apocalyptic number.

23021132131 is a deficient number, since it is larger than the sum of its proper divisors (1354184261).

23021132131 is a wasteful number, since it uses less digits than its factorization.

23021132131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354184260.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23021132131 its reverse (13123112032), we get a palindrome (36144244163).

The spelling of 23021132131 in words is "twenty-three billion, twenty-one million, one hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 17 1354184243 23021132131