20313101028 has 72 divisors (see below), whose sum is σ = 52559254944. Its totient is φ = 6100962560.

The previous prime is 20313101027. The next prime is 20313101051. The reversal of 20313101028 is 82010131302.

It is a junction number, because it is equal to n+sod(n) for n = 20313100995 and 20313101013.

It is not an unprimeable number, because it can be changed into a prime (20313101027) 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, 102175 + ... + 225977.

It is an arithmetic number, because the mean of its divisors is an integer number (729989652).

Almost surely, 2^20313101028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20313101028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26279627472).

20313101028 is an abundant number, since it is smaller than the sum of its proper divisors (32246153916).

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

20313101028 is a wasteful number, since it uses less digits than its factorization.

20313101028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123945 (or 123932 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 20313101028 in words is "twenty billion, three hundred thirteen million, one hundred one thousand, twenty-eight".