12397756403 has 2 divisors, whose sum is σ = 12397756404. Its totient is φ = 12397756402.

The previous prime is 12397756391. The next prime is 12397756421. The reversal of 12397756403 is 30465779321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12397756403 - 2¹⁸ = 12397494259 is a prime.

It is not a weakly prime, because it can be changed into another prime (12397756433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6198878201 + 6198878202.

It is an arithmetic number, because the mean of its divisors is an integer number (6198878202).

Almost surely, 2^12397756403 is an apocalyptic number.

12397756403 is a deficient number, since it is larger than the sum of its proper divisors (1).

12397756403 is an equidigital number, since it uses as much as digits as its factorization.

12397756403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 47.

The spelling of 12397756403 in words is "twelve billion, three hundred ninety-seven million, seven hundred fifty-six thousand, four hundred three".