20310013308 has 48 divisors (see below), whose sum is σ = 51146305056. Its totient is φ = 6235656960.

The previous prime is 20310013307. The next prime is 20310013319. The reversal of 20310013308 is 80331001302.

It is a happy number.

It is a super-2 number, since 2×20310013308² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310013301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69291 + ... + 213122.

It is an arithmetic number, because the mean of its divisors is an integer number (1065548022).

Almost surely, 2^20310013308 is an apocalyptic number.

It is an amenable number.

20310013308 is an abundant number, since it is smaller than the sum of its proper divisors (30836291748).

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

20310013308 is a wasteful number, since it uses less digits than its factorization.

20310013308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282894 (or 282892 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The spelling of 20310013308 in words is "twenty billion, three hundred ten million, thirteen thousand, three hundred eight".