2113402102021 has 8 divisors (see below), whose sum is σ = 2415365645760. Its totient is φ = 1811450797728.

The previous prime is 2113402102013. The next prime is 2113402102051. The reversal of 2113402102021 is 1202012043112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2113402102021 - 2³ = 2113402102013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113402102021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113402102051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2686816 + ... + 3383161.

It is an arithmetic number, because the mean of its divisors is an integer number (301920705720).

Almost surely, 2^{2113402102021} is an apocalyptic number.

It is an amenable number.

2113402102021 is a deficient number, since it is larger than the sum of its proper divisors (301963543739).

2113402102021 is an equidigital number, since it uses as much as digits as its factorization.

2113402102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6119723.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2113402102021 its reverse (1202012043112), we get a palindrome (3315414145133).

The spelling of 2113402102021 in words is "two trillion, one hundred thirteen billion, four hundred two million, one hundred two thousand, twenty-one".