213121141121312 has 12 divisors (see below), whose sum is σ = 419582246582646. Its totient is φ = 106560570560640.

The previous prime is 213121141121257. The next prime is 213121141121347.

213121141121312 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 120291847159696 + 92829293961616 = 10967764^2 + 9634796^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3330017829989 + ... + 3330017830052.

Almost surely, 2^{213121141121312} is an apocalyptic number.

It is an amenable number.

213121141121312 is a deficient number, since it is larger than the sum of its proper divisors (206461105461334).

213121141121312 is an equidigital number, since it uses as much as digits as its factorization.

213121141121312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6660035660051 (or 6660035660043 counting only the distinct ones).

The product of its digits is 576, while the sum is 26.

The spelling of 213121141121312 in words is "two hundred thirteen trillion, one hundred twenty-one billion, one hundred forty-one million, one hundred twenty-one thousand, three hundred twelve".