31015403253242 has 16 divisors (see below), whose sum is σ = 47005670561472. Its totient is φ = 15347141278080.

The previous prime is 31015403253209. The next prime is 31015403253253. The reversal of 31015403253242 is 24235230451013.

It is a super-2 number, since 2×31015403253242² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73508759 + ... + 73929482.

It is an arithmetic number, because the mean of its divisors is an integer number (2937854410092).

Almost surely, 2^{31015403253242} is an apocalyptic number.

31015403253242 is a deficient number, since it is larger than the sum of its proper divisors (15990267308230).

31015403253242 is a wasteful number, since it uses less digits than its factorization.

31015403253242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147439333.

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 31015403253242 in words is "thirty-one trillion, fifteen billion, four hundred three million, two hundred fifty-three thousand, two hundred forty-two".