231403365455 has 16 divisors (see below), whose sum is σ = 292679347680. Its totient is φ = 175366708608.

The previous prime is 231403365439. The next prime is 231403365461. The reversal of 231403365455 is 554563304132.

It is a cyclic number.

It is not a de Polignac number, because 231403365455 - 2⁴ = 231403365439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15047837 + ... + 15063206.

It is an arithmetic number, because the mean of its divisors is an integer number (18292459230).

Almost surely, 2^231403365455 is an apocalyptic number.

231403365455 is a deficient number, since it is larger than the sum of its proper divisors (61275982225).

231403365455 is a wasteful number, since it uses less digits than its factorization.

231403365455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30111130.

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 231403365455 its reverse (554563304132), we get a palindrome (785966669587).

The spelling of 231403365455 in words is "two hundred thirty-one billion, four hundred three million, three hundred sixty-five thousand, four hundred fifty-five".