231325620 has 48 divisors (see below), whose sum is σ = 648708480. Its totient is φ = 61591936.

The previous prime is 231325609. The next prime is 231325621. The reversal of 231325620 is 26523132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231325621) 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, 41986 + ... + 47174.

It is an arithmetic number, because the mean of its divisors is an integer number (13514760).

Almost surely, 2^231325620 is an apocalyptic number.

231325620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231325620 is an abundant number, since it is smaller than the sum of its proper divisors (417382860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231325620 is a wasteful number, since it uses less digits than its factorization.

231325620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5944 (or 5942 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 231325620 is about 15209.3924927987. The cubic root of 231325620 is about 613.8674111665.

Adding to 231325620 its reverse (26523132), we get a palindrome (257848752).

The spelling of 231325620 in words is "two hundred thirty-one million, three hundred twenty-five thousand, six hundred twenty".