231106521016 has 16 divisors (see below), whose sum is σ = 495228259440. Its totient is φ = 99045651840.

The previous prime is 231106521013. The next prime is 231106521017. The reversal of 231106521016 is 610125601132.

It is a super-2 number, since 2×231106521016² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231106521011) 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, 2063451025 + ... + 2063451136.

It is an arithmetic number, because the mean of its divisors is an integer number (30951766215).

Almost surely, 2^231106521016 is an apocalyptic number.

It is an amenable number.

231106521016 is an abundant number, since it is smaller than the sum of its proper divisors (264121738424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231106521016 is a wasteful number, since it uses less digits than its factorization.

231106521016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126902174 (or 4126902170 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 231106521016 in words is "two hundred thirty-one billion, one hundred six million, five hundred twenty-one thousand, sixteen".