321697013403 has 16 divisors (see below), whose sum is σ = 442803485696. Its totient is φ = 207528786720.

The previous prime is 321697013371. The next prime is 321697013411. The reversal of 321697013403 is 304310796123.

It is not a de Polignac number, because 321697013403 - 2⁵ = 321697013371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321697014403) 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, 998376 + ... + 1280682.

It is an arithmetic number, because the mean of its divisors is an integer number (27675217856).

Almost surely, 2^321697013403 is an apocalyptic number.

321697013403 is a deficient number, since it is larger than the sum of its proper divisors (121106472293).

321697013403 is a wasteful number, since it uses less digits than its factorization.

321697013403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294594.

The product of its (nonzero) digits is 81648, while the sum is 39.

The spelling of 321697013403 in words is "three hundred twenty-one billion, six hundred ninety-seven million, thirteen thousand, four hundred three".