31232202142 has 16 divisors (see below), whose sum is σ = 46915349040. Its totient is φ = 15593769792.

The previous prime is 31232202139. The next prime is 31232202161. The reversal of 31232202142 is 24120223213.

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 7 ways as a sum of consecutive naturals, for example, 7139868 + ... + 7144240.

It is an arithmetic number, because the mean of its divisors is an integer number (2932209315).

Almost surely, 2^31232202142 is an apocalyptic number.

31232202142 is a deficient number, since it is larger than the sum of its proper divisors (15683146898).

31232202142 is a wasteful number, since it uses less digits than its factorization.

31232202142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8667.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31232202142 its reverse (24120223213), we get a palindrome (55352425355).

The spelling of 31232202142 in words is "thirty-one billion, two hundred thirty-two million, two hundred two thousand, one hundred forty-two".