31203521412342 has 32 divisors (see below), whose sum is σ = 64036972470240. Its totient is φ = 10130374471680.

The previous prime is 31203521412289. The next prime is 31203521412361. The reversal of 31203521412342 is 24321412530213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106804867 + ... + 107096622.

It is an arithmetic number, because the mean of its divisors is an integer number (2001155389695).

Almost surely, 2^{31203521412342} is an apocalyptic number.

31203521412342 is an abundant number, since it is smaller than the sum of its proper divisors (32833451057898).

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

31203521412342 is a wasteful number, since it uses less digits than its factorization.

31203521412342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213902128.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 31203521412342 its reverse (24321412530213), we get a palindrome (55524933942555).

The spelling of 31203521412342 in words is "thirty-one trillion, two hundred three billion, five hundred twenty-one million, four hundred twelve thousand, three hundred forty-two".