31220010142 has 8 divisors (see below), whose sum is σ = 47972210832. Its totient is φ = 15229273200.

The previous prime is 31220010097. The next prime is 31220010161. The reversal of 31220010142 is 24101002213.

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, 190365834 + ... + 190365997.

It is an arithmetic number, because the mean of its divisors is an integer number (5996526354).

Almost surely, 2^31220010142 is an apocalyptic number.

31220010142 is a deficient number, since it is larger than the sum of its proper divisors (16752200690).

31220010142 is a wasteful number, since it uses less digits than its factorization.

31220010142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380731874.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 31220010142 its reverse (24101002213), we get a palindrome (55321012355).

The spelling of 31220010142 in words is "thirty-one billion, two hundred twenty million, ten thousand, one hundred forty-two".