373831204321 has 2 divisors, whose sum is σ = 373831204322. Its totient is φ = 373831204320.

The previous prime is 373831204267. The next prime is 373831204363. The reversal of 373831204321 is 123402138373.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 351013591296 + 22817613025 = 592464^2 + 151055^2 .

It is a cyclic number.

It is not a de Polignac number, because 373831204321 - 2¹¹ = 373831202273 is a prime.

It is not a weakly prime, because it can be changed into another prime (373831204921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186915602160 + 186915602161.

It is an arithmetic number, because the mean of its divisors is an integer number (186915602161).

Almost surely, 2^373831204321 is an apocalyptic number.

It is an amenable number.

373831204321 is a deficient number, since it is larger than the sum of its proper divisors (1).

373831204321 is an equidigital number, since it uses as much as digits as its factorization.

373831204321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 373831204321 in words is "three hundred seventy-three billion, eight hundred thirty-one million, two hundred four thousand, three hundred twenty-one".