2312440140321 has 32 divisors (see below), whose sum is σ = 3428321500800. Its totient is φ = 1540509347520.

The previous prime is 2312440140317. The next prime is 2312440140337. The reversal of 2312440140321 is 1230410442132.

2312440140321 is a `hidden beast` number, since 231 + 2 + 4 + 4 + 0 + 1 + 403 + 21 = 666.

It is not a de Polignac number, because 2312440140321 - 2² = 2312440140317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2312440140221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 407906875 + ... + 407912543.

It is an arithmetic number, because the mean of its divisors is an integer number (107135046900).

Almost surely, 2^{2312440140321} is an apocalyptic number.

It is an amenable number.

2312440140321 is a deficient number, since it is larger than the sum of its proper divisors (1115881360479).

2312440140321 is a wasteful number, since it uses less digits than its factorization.

2312440140321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13966 (or 13960 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 2312440140321 its reverse (1230410442132), we get a palindrome (3542850582453).

The spelling of 2312440140321 in words is "two trillion, three hundred twelve billion, four hundred forty million, one hundred forty thousand, three hundred twenty-one".