231265403 has 2 divisors, whose sum is σ = 231265404. Its totient is φ = 231265402.

The previous prime is 231265393. The next prime is 231265439. The reversal of 231265403 is 304562132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231265403 - 2⁸ = 231265147 is a prime.

It is not a weakly prime, because it can be changed into another prime (231265703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115632701 + 115632702.

It is an arithmetic number, because the mean of its divisors is an integer number (115632702).

Almost surely, 2^231265403 is an apocalyptic number.

231265403 is a deficient number, since it is larger than the sum of its proper divisors (1).

231265403 is an equidigital number, since it uses as much as digits as its factorization.

231265403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 231265403 is about 15207.4127648328. The cubic root of 231265403 is about 613.8141407132.

The spelling of 231265403 in words is "two hundred thirty-one million, two hundred sixty-five thousand, four hundred three".