321131947325 has 48 divisors (see below), whose sum is σ = 485969372160. Its totient is φ = 205752960000.

The previous prime is 321131947321. The next prime is 321131947337. The reversal of 321131947325 is 523749131123.

It is not a de Polignac number, because 321131947325 - 2² = 321131947321 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321131947321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 863276 + ... + 1177925.

It is an arithmetic number, because the mean of its divisors is an integer number (10124361920).

Almost surely, 2^321131947325 is an apocalyptic number.

321131947325 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

321131947325 is a deficient number, since it is larger than the sum of its proper divisors (164837424835).

321131947325 is a wasteful number, since it uses less digits than its factorization.

321131947325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041278 (or 2041273 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The spelling of 321131947325 in words is "three hundred twenty-one billion, one hundred thirty-one million, nine hundred forty-seven thousand, three hundred twenty-five".