31025211142 has 8 divisors (see below), whose sum is σ = 47060713800. Its totient is φ = 15338306544.

The previous prime is 31025211109. The next prime is 31025211181. The reversal of 31025211142 is 24111252013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 87149292 + ... + 87149647.

It is an arithmetic number, because the mean of its divisors is an integer number (5882589225).

Almost surely, 2^31025211142 is an apocalyptic number.

31025211142 is a deficient number, since it is larger than the sum of its proper divisors (16035502658).

31025211142 is a wasteful number, since it uses less digits than its factorization.

31025211142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174299030.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 31025211142 its reverse (24111252013), we get a palindrome (55136463155).

The spelling of 31025211142 in words is "thirty-one billion, twenty-five million, two hundred eleven thousand, one hundred forty-two".