20313120212 has 24 divisors (see below), whose sum is σ = 44319535680. Its totient is φ = 7914202560.

The previous prime is 20313120181. The next prime is 20313120221. The reversal of 20313120212 is 21202131302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32975537 + ... + 32976152.

It is an arithmetic number, because the mean of its divisors is an integer number (1846647320).

Almost surely, 2^20313120212 is an apocalyptic number.

20313120212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20313120212 is an abundant number, since it is smaller than the sum of its proper divisors (24006415468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20313120212 is a wasteful number, since it uses less digits than its factorization.

20313120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65951711 (or 65951709 counting only the distinct ones).

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

Adding to 20313120212 its reverse (21202131302), we get a palindrome (41515251514).

The spelling of 20313120212 in words is "twenty billion, three hundred thirteen million, one hundred twenty thousand, two hundred twelve".