231055455503 has 4 divisors (see below), whose sum is σ = 231116601240. Its totient is φ = 230994309768.

The previous prime is 231055455469. The next prime is 231055455523. The reversal of 231055455503 is 305554550132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231055455503 - 2⁸ = 231055455247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231055455523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30567200 + ... + 30574757.

It is an arithmetic number, because the mean of its divisors is an integer number (57779150310).

Almost surely, 2^231055455503 is an apocalyptic number.

231055455503 is a deficient number, since it is larger than the sum of its proper divisors (61145737).

231055455503 is an equidigital number, since it uses as much as digits as its factorization.

231055455503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61145736.

The product of its (nonzero) digits is 225000, while the sum is 38.

The spelling of 231055455503 in words is "two hundred thirty-one billion, fifty-five million, four hundred fifty-five thousand, five hundred three".