31522342140142 has 16 divisors (see below), whose sum is σ = 54038656516320. Its totient is φ = 13509486276768.

The previous prime is 31522342140139. The next prime is 31522342140173. The reversal of 31522342140142 is 24104124322513.

It is a junction number, because it is equal to n+sod(n) for n = 31522342140098 and 31522342140107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5184633 + ... + 9482884.

It is an arithmetic number, because the mean of its divisors is an integer number (3377416032270).

Almost surely, 2^{31522342140142} is an apocalyptic number.

31522342140142 is a deficient number, since it is larger than the sum of its proper divisors (22516314376178).

31522342140142 is a wasteful number, since it uses less digits than its factorization.

31522342140142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14821035.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 31522342140142 its reverse (24104124322513), we get a palindrome (55626466462655).

The spelling of 31522342140142 in words is "thirty-one trillion, five hundred twenty-two billion, three hundred forty-two million, one hundred forty thousand, one hundred forty-two".