2131322231312 has 10 divisors (see below), whose sum is σ = 4129436823198. Its totient is φ = 1065661115648.

The previous prime is 2131322231267. The next prime is 2131322231317.

2131322231312 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 2118957680896 + 12364550416 = 1455664^2 + 111196^2 .

It is not an unprimeable number, because it can be changed into a prime (2131322231317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66603819713 + ... + 66603819744.

Almost surely, 2^{2131322231312} is an apocalyptic number.

It is an amenable number.

2131322231312 is a deficient number, since it is larger than the sum of its proper divisors (1998114591886).

2131322231312 is a wasteful number, since it uses less digits than its factorization.

2131322231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133207639465 (or 133207639459 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The spelling of 2131322231312 in words is "two trillion, one hundred thirty-one billion, three hundred twenty-two million, two hundred thirty-one thousand, three hundred twelve".