20100313020 has 48 divisors (see below), whose sum is σ = 57589741440. Its totient is φ = 5235429696.

The previous prime is 20100312997. The next prime is 20100313049. The reversal of 20100313020 is 2031300102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20100312987 and 20100313005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3892830 + ... + 3897989.

It is an arithmetic number, because the mean of its divisors is an integer number (1199786280).

Almost surely, 2^20100313020 is an apocalyptic number.

20100313020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100313020 is an abundant number, since it is smaller than the sum of its proper divisors (37489428420).

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

20100313020 is a wasteful number, since it uses less digits than its factorization.

20100313020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7790874 (or 7790872 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20100313020 its reverse (2031300102), we get a palindrome (22131613122).

The spelling of 20100313020 in words is "twenty billion, one hundred million, three hundred thirteen thousand, twenty".