31125159243 has 6 divisors (see below), whose sum is σ = 44958563364. Its totient is φ = 20750106156.

The previous prime is 31125159229. The next prime is 31125159269. The reversal of 31125159243 is 34295152113.

It is a happy number.

31125159243 is a `hidden beast` number, since 3 + 1 + 1 + 25 + 1 + 592 + 43 = 666.

It is not a de Polignac number, because 31125159243 - 2⁴ = 31125159227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31125159198 and 31125159207.

It is not an unprimeable number, because it can be changed into a prime (31125159343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1729175505 + ... + 1729175522.

It is an arithmetic number, because the mean of its divisors is an integer number (7493093894).

Almost surely, 2^31125159243 is an apocalyptic number.

31125159243 is a deficient number, since it is larger than the sum of its proper divisors (13833404121).

31125159243 is a wasteful number, since it uses less digits than its factorization.

31125159243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3458351033 (or 3458351030 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The spelling of 31125159243 in words is "thirty-one billion, one hundred twenty-five million, one hundred fifty-nine thousand, two hundred forty-three".