31522340042 has 32 divisors (see below), whose sum is σ = 49504815360. Its totient is φ = 15038187520.

The previous prime is 31522340039. The next prime is 31522340093. The reversal of 31522340042 is 24004322513.

It is a junction number, because it is equal to n+sod(n) for n = 31522339993 and 31522340020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7347434 + ... + 7351722.

It is an arithmetic number, because the mean of its divisors is an integer number (1547025480).

Almost surely, 2^31522340042 is an apocalyptic number.

31522340042 is a deficient number, since it is larger than the sum of its proper divisors (17982475318).

31522340042 is a wasteful number, since it uses less digits than its factorization.

31522340042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6286.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 31522340042 its reverse (24004322513), we get a palindrome (55526662555).

The spelling of 31522340042 in words is "thirty-one billion, five hundred twenty-two million, three hundred forty thousand, forty-two".