2113133031020 has 96 divisors (see below), whose sum is σ = 4903177466880. Its totient is φ = 758545482240.

The previous prime is 2113133031019. The next prime is 2113133031029. The reversal of 2113133031020 is 201303313112.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2113133030983 and 2113133031001.

It is not an unprimeable number, because it can be changed into a prime (2113133031029) 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, 160358672 + ... + 160371848.

It is an arithmetic number, because the mean of its divisors is an integer number (51074765280).

Almost surely, 2^{2113133031020} is an apocalyptic number.

2113133031020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113133031020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2451588733440).

2113133031020 is an abundant number, since it is smaller than the sum of its proper divisors (2790044435860).

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

2113133031020 is a wasteful number, since it uses less digits than its factorization.

2113133031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22503 (or 22501 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 2113133031020 its reverse (201303313112), we get a palindrome (2314436344132).

The spelling of 2113133031020 in words is "two trillion, one hundred thirteen billion, one hundred thirty-three million, thirty-one thousand, twenty".