31023124112442 has 256 divisors, whose sum is σ = 83001636126720. Its totient is φ = 7487022585600.

The previous prime is 31023124112417. The next prime is 31023124112459. The reversal of 31023124112442 is 24421142132013.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 185720443 + ... + 185887409.

It is an arithmetic number, because the mean of its divisors is an integer number (324225141120).

Almost surely, 2^{31023124112442} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31023124112442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41500818063360).

31023124112442 is an abundant number, since it is smaller than the sum of its proper divisors (51978512014278).

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

31023124112442 is a wasteful number, since it uses less digits than its factorization.

31023124112442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167417.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 31023124112442 its reverse (24421142132013), we get a palindrome (55444266244455).

The spelling of 31023124112442 in words is "thirty-one trillion, twenty-three billion, one hundred twenty-four million, one hundred twelve thousand, four hundred forty-two".