111402371235631 has 24 divisors (see below), whose sum is σ = 130013637036480. Its totient is φ = 95176389268800.

The previous prime is 111402371235607. The next prime is 111402371235637. The reversal of 111402371235631 is 136532173204111.

It is not a de Polignac number, because 111402371235631 - 2⁷ = 111402371235503 is a prime.

It is a super-2 number, since 2×111402371235631² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111402371235637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19921405 + ... + 24893113.

It is an arithmetic number, because the mean of its divisors is an integer number (5417234876520).

Almost surely, 2^{111402371235631} is an apocalyptic number.

111402371235631 is a deficient number, since it is larger than the sum of its proper divisors (18611265800849).

111402371235631 is a wasteful number, since it uses less digits than its factorization.

111402371235631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4973215 (or 4973208 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 111402371235631 in words is "one hundred eleven trillion, four hundred two billion, three hundred seventy-one million, two hundred thirty-five thousand, six hundred thirty-one".