20012013312 has 72 divisors (see below), whose sum is σ = 54134399760. Its totient is φ = 6561300480.

The previous prime is 20012013293. The next prime is 20012013313. The reversal of 20012013312 is 21331021002.

It is a junction number, because it is equal to n+sod(n) for n = 20012013291 and 20012013300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012013313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166737 + ... + 260432.

Almost surely, 2^20012013312 is an apocalyptic number.

It is an amenable number.

20012013312 is an abundant number, since it is smaller than the sum of its proper divisors (34122386448).

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

20012013312 is an equidigital number, since it uses as much as digits as its factorization.

20012013312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427249 (or 427235 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20012013312 its reverse (21331021002), we get a palindrome (41343034314).

The spelling of 20012013312 in words is "twenty billion, twelve million, thirteen thousand, three hundred twelve".