31043151009 has 24 divisors (see below), whose sum is σ = 48969490752. Its totient is φ = 18834409440.

The previous prime is 31043151001. The next prime is 31043151011. The reversal of 31043151009 is 90015134013.

It is not a de Polignac number, because 31043151009 - 2³ = 31043151001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31043151001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1860187 + ... + 1876800.

It is an arithmetic number, because the mean of its divisors is an integer number (2040395448).

Almost surely, 2^31043151009 is an apocalyptic number.

31043151009 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

31043151009 is a deficient number, since it is larger than the sum of its proper divisors (17926339743).

31043151009 is a wasteful number, since it uses less digits than its factorization.

31043151009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737077 (or 3737074 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The spelling of 31043151009 in words is "thirty-one billion, forty-three million, one hundred fifty-one thousand, nine".