321238869397 has 16 divisors (see below), whose sum is σ = 337548600000. Its totient is φ = 305285460480.

The previous prime is 321238869373. The next prime is 321238869403. The reversal of 321238869397 is 793968832123.

It is a cyclic number.

It is not a de Polignac number, because 321238869397 - 2⁷ = 321238869269 is a prime.

It is a super-2 number, since 2×321238869397² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321238869317) 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, 2360622 + ... + 2492992.

It is an arithmetic number, because the mean of its divisors is an integer number (21096787500).

Almost surely, 2^321238869397 is an apocalyptic number.

It is an amenable number.

321238869397 is a deficient number, since it is larger than the sum of its proper divisors (16309730603).

321238869397 is a wasteful number, since it uses less digits than its factorization.

321238869397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133716.

The product of its digits is 23514624, while the sum is 61.

The spelling of 321238869397 in words is "three hundred twenty-one billion, two hundred thirty-eight million, eight hundred sixty-nine thousand, three hundred ninety-seven".