2331312310138 has 64 divisors (see below), whose sum is σ = 4224147840000. Its totient is φ = 942666315264.

The previous prime is 2331312310121. The next prime is 2331312310139. The reversal of 2331312310138 is 8310132131332.

It is not an unprimeable number, because it can be changed into a prime (2331312310139) 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, 148967338 + ... + 148982986.

It is an arithmetic number, because the mean of its divisors is an integer number (66002310000).

Almost surely, 2^{2331312310138} is an apocalyptic number.

2331312310138 is a deficient number, since it is larger than the sum of its proper divisors (1892835529862).

2331312310138 is a wasteful number, since it uses less digits than its factorization.

2331312310138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17939.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 2331312310138 in words is "two trillion, three hundred thirty-one billion, three hundred twelve million, three hundred ten thousand, one hundred thirty-eight".