20112212313 has 24 divisors (see below), whose sum is σ = 29451213792. Its totient is φ = 13223968128.

The previous prime is 20112212311. The next prime is 20112212357. The reversal of 20112212313 is 31321221102.

It is not a de Polignac number, because 20112212313 - 2¹ = 20112212311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20112212311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 420270 + ... + 465672.

It is an arithmetic number, because the mean of its divisors is an integer number (1227133908).

Almost surely, 2^20112212313 is an apocalyptic number.

It is an amenable number.

20112212313 is a deficient number, since it is larger than the sum of its proper divisors (9339001479).

20112212313 is a wasteful number, since it uses less digits than its factorization.

20112212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46085 (or 46082 counting only the distinct ones).

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

Adding to 20112212313 its reverse (31321221102), we get a palindrome (51433433415).

The spelling of 20112212313 in words is "twenty billion, one hundred twelve million, two hundred twelve thousand, three hundred thirteen".