31270101042 has 64 divisors (see below), whose sum is σ = 65825270784. Its totient is φ = 9892808640.

The previous prime is 31270100989. The next prime is 31270101043. The reversal of 31270101042 is 24010107213.

It is not an unprimeable number, because it can be changed into a prime (31270101043) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1521817 + ... + 1542227.

It is an arithmetic number, because the mean of its divisors is an integer number (1028519856).

Almost surely, 2^31270101042 is an apocalyptic number.

31270101042 is an abundant number, since it is smaller than the sum of its proper divisors (34555169742).

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

31270101042 is a wasteful number, since it uses less digits than its factorization.

31270101042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20623.

The product of its (nonzero) digits is 336, while the sum is 21.

Adding to 31270101042 its reverse (24010107213), we get a palindrome (55280208255).

The spelling of 31270101042 in words is "thirty-one billion, two hundred seventy million, one hundred one thousand, forty-two".