31015442122 has 16 divisors (see below), whose sum is σ = 53717469120. Its totient is φ = 13155297408.

The previous prime is 31015442119. The next prime is 31015442147. The reversal of 31015442122 is 22124451013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11418172 + ... + 11420887.

It is an arithmetic number, because the mean of its divisors is an integer number (3357341820).

Almost surely, 2^31015442122 is an apocalyptic number.

31015442122 is a deficient number, since it is larger than the sum of its proper divisors (22702026998).

31015442122 is a wasteful number, since it uses less digits than its factorization.

31015442122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22839165.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 31015442122 its reverse (22124451013), we get a palindrome (53139893135).

The spelling of 31015442122 in words is "thirty-one billion, fifteen million, four hundred forty-two thousand, one hundred twenty-two".