231401004287 has 2 divisors, whose sum is σ = 231401004288. Its totient is φ = 231401004286.

The previous prime is 231401004223. The next prime is 231401004319. The reversal of 231401004287 is 782400104132.

It is an a-pointer prime, because the next prime (231401004319) can be obtained adding 231401004287 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231401004287 - 2⁶ = 231401004223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231401004587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115700502143 + 115700502144.

It is an arithmetic number, because the mean of its divisors is an integer number (115700502144).

Almost surely, 2^231401004287 is an apocalyptic number.

231401004287 is a deficient number, since it is larger than the sum of its proper divisors (1).

231401004287 is an equidigital number, since it uses as much as digits as its factorization.

231401004287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 231401004287 in words is "two hundred thirty-one billion, four hundred one million, four thousand, two hundred eighty-seven".