31030123013142 has 32 divisors (see below), whose sum is σ = 67789670238720. Its totient is φ = 9390903181920.

The previous prime is 31030123013089. The next prime is 31030123013161. The reversal of 31030123013142 is 24131032103013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304058542 + ... + 304160577.

It is an arithmetic number, because the mean of its divisors is an integer number (2118427194960).

Almost surely, 2^{31030123013142} is an apocalyptic number.

31030123013142 is an abundant number, since it is smaller than the sum of its proper divisors (36759547225578).

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

31030123013142 is a wasteful number, since it uses less digits than its factorization.

31030123013142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608219908.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31030123013142 its reverse (24131032103013), we get a palindrome (55161155116155).

The spelling of 31030123013142 in words is "thirty-one trillion, thirty billion, one hundred twenty-three million, thirteen thousand, one hundred forty-two".