2121132320312 has 16 divisors (see below), whose sum is σ = 3977165907000. Its totient is φ = 1060554745120.

The previous prime is 2121132320309. The next prime is 2121132320317. The reversal of 2121132320312 is 2130232311212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121132320317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609614 + ... + 2147997.

Almost surely, 2^{2121132320312} is an apocalyptic number.

It is an amenable number.

2121132320312 is a deficient number, since it is larger than the sum of its proper divisors (1856033586688).

2121132320312 is a wasteful number, since it uses less digits than its factorization.

2121132320312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853766 (or 2853762 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2121132320312 its reverse (2130232311212), we get a palindrome (4251364631524).

The spelling of 2121132320312 in words is "two trillion, one hundred twenty-one billion, one hundred thirty-two million, three hundred twenty thousand, three hundred twelve".