213020102312 has 16 divisors (see below), whose sum is σ = 399425179860. Its totient is φ = 106506721024.

The previous prime is 213020102311. The next prime is 213020102333. The reversal of 213020102312 is 213201020312.

It can be written as a sum of positive squares in 2 ways, for example, as 185266541476 + 27753560836 = 430426^2 + 166594^2 .

It is not an unprimeable number, because it can be changed into a prime (213020102311) 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, 133073 + ... + 666144.

Almost surely, 2^213020102312 is an apocalyptic number.

It is an amenable number.

213020102312 is a deficient number, since it is larger than the sum of its proper divisors (186405077548).

213020102312 is a wasteful number, since it uses less digits than its factorization.

213020102312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832540 (or 832536 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 213020102312 its reverse (213201020312), we get a palindrome (426221122624).

The spelling of 213020102312 in words is "two hundred thirteen billion, twenty million, one hundred two thousand, three hundred twelve".