31520068801 has 8 divisors (see below), whose sum is σ = 34422784704. Its totient is φ = 28685652240.

The previous prime is 31520068777. The next prime is 31520068817. The reversal of 31520068801 is 10886002513.

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 31520068801 - 2⁹ = 31520068289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31520068831) 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, 17073871 + ... + 17075716.

It is an arithmetic number, because the mean of its divisors is an integer number (4302848088).

Almost surely, 2^31520068801 is an apocalyptic number.

It is an amenable number.

31520068801 is a deficient number, since it is larger than the sum of its proper divisors (2902715903).

31520068801 is a wasteful number, since it uses less digits than its factorization.

31520068801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34149671.

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 31520068801 in words is "thirty-one billion, five hundred twenty million, sixty-eight thousand, eight hundred one".