31411660321 has 8 divisors (see below), whose sum is σ = 31857119424. Its totient is φ = 30966285840.

The previous prime is 31411660289. The next prime is 31411660331. The reversal of 31411660321 is 12306611413.

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

It is a cyclic number.

It is not a de Polignac number, because 31411660321 - 2⁵ = 31411660289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31411660321.

It is not an unprimeable number, because it can be changed into a prime (31411660331) 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, 1352610 + ... + 1375636.

It is an arithmetic number, because the mean of its divisors is an integer number (3982139928).

Almost surely, 2^31411660321 is an apocalyptic number.

It is an amenable number.

31411660321 is a deficient number, since it is larger than the sum of its proper divisors (445459103).

31411660321 is a wasteful number, since it uses less digits than its factorization.

31411660321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42311.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 31411660321 in words is "thirty-one billion, four hundred eleven million, six hundred sixty thousand, three hundred twenty-one".