31352243045142 has 32 divisors (see below), whose sum is σ = 63215373218400. Its totient is φ = 10365799942400.

The previous prime is 31352243045141. The next prime is 31352243045159. The reversal of 31352243045142 is 24154034225313.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31352243045142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31352243045141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24387303 + ... + 25640690.

It is an arithmetic number, because the mean of its divisors is an integer number (1975480413075).

Almost surely, 2^{31352243045142} is an apocalyptic number.

31352243045142 is an abundant number, since it is smaller than the sum of its proper divisors (31863130173258).

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

31352243045142 is a wasteful number, since it uses less digits than its factorization.

31352243045142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50028848.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 31352243045142 in words is "thirty-one trillion, three hundred fifty-two billion, two hundred forty-three million, forty-five thousand, one hundred forty-two".