20003113020 has 96 divisors (see below), whose sum is σ = 61730516736. Its totient is φ = 4799232000.

The previous prime is 20003113007. The next prime is 20003113027. The reversal of 20003113020 is 2031130002.

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 = 20003112987 and 20003113005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003113027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92206 + ... + 220245.

It is an arithmetic number, because the mean of its divisors is an integer number (643026216).

Almost surely, 2^20003113020 is an apocalyptic number.

20003113020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003113020 is an abundant number, since it is smaller than the sum of its proper divisors (41727403716).

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

20003113020 is a wasteful number, since it uses less digits than its factorization.

20003113020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312571 (or 312569 counting only the distinct ones).

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

Adding to 20003113020 its reverse (2031130002), we get a palindrome (22034243022).

The spelling of 20003113020 in words is "twenty billion, three million, one hundred thirteen thousand, twenty".