31143001139 has 16 divisors (see below), whose sum is σ = 32458345920. Its totient is φ = 29844608640.

The previous prime is 31143001051. The next prime is 31143001147. The reversal of 31143001139 is 93110034113.

It is a cyclic number.

It is not a de Polignac number, because 31143001139 - 2⁸ = 31143000883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31143001159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2105309 + ... + 2120049.

It is an arithmetic number, because the mean of its divisors is an integer number (2028646620).

Almost surely, 2^31143001139 is an apocalyptic number.

31143001139 is a deficient number, since it is larger than the sum of its proper divisors (1315344781).

31143001139 is a wasteful number, since it uses less digits than its factorization.

31143001139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15310.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 31143001139 in words is "thirty-one billion, one hundred forty-three million, one thousand, one hundred thirty-nine".