31168140551 has 8 divisors (see below), whose sum is σ = 31590398784. Its totient is φ = 30748111200.

The previous prime is 31168140539. The next prime is 31168140583. The reversal of 31168140551 is 15504186113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31168140551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31168140251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529055 + ... + 585008.

It is an arithmetic number, because the mean of its divisors is an integer number (3948799848).

Almost surely, 2^31168140551 is an apocalyptic number.

31168140551 is a deficient number, since it is larger than the sum of its proper divisors (422258233).

31168140551 is a wasteful number, since it uses less digits than its factorization.

31168140551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114441.

The product of its (nonzero) digits is 14400, while the sum is 35.

The spelling of 31168140551 in words is "thirty-one billion, one hundred sixty-eight million, one hundred forty thousand, five hundred fifty-one".