4312815231 has 16 divisors (see below), whose sum is σ = 5778938880. Its totient is φ = 2860977120.

The previous prime is 4312815223. The next prime is 4312815233. The reversal of 4312815231 is 1325182134.

It is not a de Polignac number, because 4312815231 - 2³ = 4312815223 is a prime.

It is a super-2 number, since 2×4312815231² = 37200750433491166722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4312815233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817141 + ... + 822401.

It is an arithmetic number, because the mean of its divisors is an integer number (361183680).

Almost surely, 2^4312815231 is an apocalyptic number.

4312815231 is a deficient number, since it is larger than the sum of its proper divisors (1466123649).

4312815231 is a wasteful number, since it uses less digits than its factorization.

4312815231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6566.

The product of its digits is 5760, while the sum is 30.

The square root of 4312815231 is about 65672.0277667745. The cubic root of 4312815231 is about 1627.7471771177.

Adding to 4312815231 its reverse (1325182134), we get a palindrome (5637997365).

The spelling of 4312815231 in words is "four billion, three hundred twelve million, eight hundred fifteen thousand, two hundred thirty-one".