397931003123 has 2 divisors, whose sum is σ = 397931003124. Its totient is φ = 397931003122.

The previous prime is 397931003053. The next prime is 397931003137. The reversal of 397931003123 is 321300139793.

It is a strong prime.

It is an emirp because it is prime and its reverse (321300139793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 397931003123 - 2¹² = 397930999027 is a prime.

It is not a weakly prime, because it can be changed into another prime (397931003423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198965501561 + 198965501562.

It is an arithmetic number, because the mean of its divisors is an integer number (198965501562).

Almost surely, 2^397931003123 is an apocalyptic number.

397931003123 is a deficient number, since it is larger than the sum of its proper divisors (1).

397931003123 is an equidigital number, since it uses as much as digits as its factorization.

397931003123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 41.

The spelling of 397931003123 in words is "three hundred ninety-seven billion, nine hundred thirty-one million, three thousand, one hundred twenty-three".