210020020312 has 8 divisors (see below), whose sum is σ = 393787538100. Its totient is φ = 105010010152.

The previous prime is 210020020291. The next prime is 210020020319. The reversal of 210020020312 is 213020020012.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 210020020292 and 210020020301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020020319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13126251262 + ... + 13126251277.

Almost surely, 2^210020020312 is an apocalyptic number.

It is an amenable number.

210020020312 is a deficient number, since it is larger than the sum of its proper divisors (183767517788).

210020020312 is a wasteful number, since it uses less digits than its factorization.

210020020312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26252502545 (or 26252502541 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 210020020312 its reverse (213020020012), we get a palindrome (423040040324).

The spelling of 210020020312 in words is "two hundred ten billion, twenty million, twenty thousand, three hundred twelve".