731011013321 has 8 divisors (see below), whose sum is σ = 769496800320. Its totient is φ = 692526378672.

The previous prime is 731011013233. The next prime is 731011013347. The reversal of 731011013321 is 123310110137.

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 731011013321 - 2³⁴ = 713831144137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731011813321) 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, 1215236 + ... + 1714298.

It is an arithmetic number, because the mean of its divisors is an integer number (96187100040).

Almost surely, 2^731011013321 is an apocalyptic number.

It is an amenable number.

731011013321 is a deficient number, since it is larger than the sum of its proper divisors (38485786999).

731011013321 is a wasteful number, since it uses less digits than its factorization.

731011013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576175.

The product of its (nonzero) digits is 378, while the sum is 23.

Adding to 731011013321 its reverse (123310110137), we get a palindrome (854321123458).

The spelling of 731011013321 in words is "seven hundred thirty-one billion, eleven million, thirteen thousand, three hundred twenty-one".