231153503 has 8 divisors (see below), whose sum is σ = 264388608. Its totient is φ = 197971704.

The previous prime is 231153499. The next prime is 231153569. The reversal of 231153503 is 305351132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231153503 - 2² = 231153499 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 (231155503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3551 + ... + 21792.

It is an arithmetic number, because the mean of its divisors is an integer number (33048576).

Almost surely, 2^231153503 is an apocalyptic number.

231153503 is a deficient number, since it is larger than the sum of its proper divisors (33235105).

231153503 is a wasteful number, since it uses less digits than its factorization.

231153503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26653.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 231153503 is about 15203.7331928708. The cubic root of 231153503 is about 613.7151247738.

The spelling of 231153503 in words is "two hundred thirty-one million, one hundred fifty-three thousand, five hundred three".