210312120213 has 48 divisors (see below), whose sum is σ = 352267755840. Its totient is φ = 119745096192.

The previous prime is 210312120203. The next prime is 210312120253. The reversal of 210312120213 is 312021213012.

210312120213 is a `hidden beast` number, since 21 + 0 + 312 + 120 + 213 = 666.

It is not a de Polignac number, because 210312120213 - 2⁵ = 210312120181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210312120203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 778731 + ... + 1013432.

It is an arithmetic number, because the mean of its divisors is an integer number (7338911580).

Almost surely, 2^210312120213 is an apocalyptic number.

It is an amenable number.

210312120213 is a deficient number, since it is larger than the sum of its proper divisors (141955635627).

210312120213 is a wasteful number, since it uses less digits than its factorization.

210312120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792258 (or 1792255 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 210312120213 its reverse (312021213012), we get a palindrome (522333333225).

The spelling of 210312120213 in words is "two hundred ten billion, three hundred twelve million, one hundred twenty thousand, two hundred thirteen".