403121996231 has 2 divisors, whose sum is σ = 403121996232. Its totient is φ = 403121996230.

The previous prime is 403121996143. The next prime is 403121996273. The reversal of 403121996231 is 132699121304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 403121996231 - 2¹⁰ = 403121995207 is a prime.

It is a super-2 number, since 2×403121996231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403121996831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201560998115 + 201560998116.

It is an arithmetic number, because the mean of its divisors is an integer number (201560998116).

Almost surely, 2^403121996231 is an apocalyptic number.

403121996231 is a deficient number, since it is larger than the sum of its proper divisors (1).

403121996231 is an equidigital number, since it uses as much as digits as its factorization.

403121996231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 403121996231 in words is "four hundred three billion, one hundred twenty-one million, nine hundred ninety-six thousand, two hundred thirty-one".