2312630140 has 24 divisors (see below), whose sum is σ = 4857456240. Its totient is φ = 924874368.

The previous prime is 2312630123. The next prime is 2312630147. The reversal of 2312630140 is 410362132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312630147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159639 + ... + 173521.

It is an arithmetic number, because the mean of its divisors is an integer number (202394010).

Almost surely, 2^2312630140 is an apocalyptic number.

2312630140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2312630140 is an abundant number, since it is smaller than the sum of its proper divisors (2544826100).

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

2312630140 is a wasteful number, since it uses less digits than its factorization.

2312630140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22221 (or 22219 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2312630140 is about 48089.8132664289. The cubic root of 2312630140 is about 1322.4179243735.

Adding to 2312630140 its reverse (410362132), we get a palindrome (2722992272).

The spelling of 2312630140 in words is "two billion, three hundred twelve million, six hundred thirty thousand, one hundred forty".