231264015315503 has 4 divisors (see below), whose sum is σ = 231264527450880. Its totient is φ = 231263503180128.

The previous prime is 231264015315457. The next prime is 231264015315527. The reversal of 231264015315503 is 305513510462132.

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 231264015315503 - 2⁶ = 231264015315439 is a prime.

It is a super-2 number, since 2×231264015315503² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231264015315103) 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, 255389738 + ... + 256293671.

It is an arithmetic number, because the mean of its divisors is an integer number (57816131862720).

Almost surely, 2^{231264015315503} is an apocalyptic number.

231264015315503 is a deficient number, since it is larger than the sum of its proper divisors (512135377).

231264015315503 is an equidigital number, since it uses as much as digits as its factorization.

231264015315503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512135376.

The product of its (nonzero) digits is 324000, while the sum is 41.

Adding to 231264015315503 its reverse (305513510462132), we get a palindrome (536777525777635).

The spelling of 231264015315503 in words is "two hundred thirty-one trillion, two hundred sixty-four billion, fifteen million, three hundred fifteen thousand, five hundred three".