321371372 has 12 divisors (see below), whose sum is σ = 642742800. Its totient is φ = 137730576.

The previous prime is 321371371. The next prime is 321371429. The reversal of 321371372 is 273173123.

321371372 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (321371371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5738747 + ... + 5738802.

It is an arithmetic number, because the mean of its divisors is an integer number (53561900).

Almost surely, 2^321371372 is an apocalyptic number.

It is an amenable number.

321371372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321371372 is a wasteful number, since it uses less digits than its factorization.

321371372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11477560 (or 11477558 counting only the distinct ones).

The product of its digits is 5292, while the sum is 29.

The square root of 321371372 is about 17926.8338531934. The cubic root of 321371372 is about 684.9660750066.

The spelling of 321371372 in words is "three hundred twenty-one million, three hundred seventy-one thousand, three hundred seventy-two".