131623310 has 48 divisors (see below), whose sum is σ = 296817696. Its totient is φ = 41654592.

The previous prime is 131623291. The next prime is 131623313. The reversal of 131623310 is 13326131.

It is a happy number.

It is a super-2 number, since 2×131623310² = 34649391470712200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131623313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3962 + ... + 16701.

It is an arithmetic number, because the mean of its divisors is an integer number (6183702).

Almost surely, 2^131623310 is an apocalyptic number.

131623310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131623310 is an abundant number, since it is smaller than the sum of its proper divisors (165194386).

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

131623310 is a wasteful number, since it uses less digits than its factorization.

131623310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20697 (or 20690 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 131623310 is about 11472.7202528433. The cubic root of 131623310 is about 508.6795393688.

Adding to 131623310 its reverse (13326131), we get a palindrome (144949441).

The spelling of 131623310 in words is "one hundred thirty-one million, six hundred twenty-three thousand, three hundred ten".