2113123404420 has 144 divisors (see below), whose sum is σ = 7325873493120. Its totient is φ = 482974645248.

The previous prime is 2113123404407. The next prime is 2113123404451. The reversal of 2113123404420 is 244043213112.

2113123404420 is a `hidden beast` number, since 2 + 1 + 1 + 3 + 1 + 234 + 0 + 4 + 420 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36585484 + ... + 36643196.

It is an arithmetic number, because the mean of its divisors is an integer number (50874121480).

Almost surely, 2^{2113123404420} is an apocalyptic number.

2113123404420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113123404420 is an abundant number, since it is smaller than the sum of its proper divisors (5212750088700).

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

2113123404420 is a wasteful number, since it uses less digits than its factorization.

2113123404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86794 (or 86789 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 2113123404420 its reverse (244043213112), we get a palindrome (2357166617532).

The spelling of 2113123404420 in words is "two trillion, one hundred thirteen billion, one hundred twenty-three million, four hundred four thousand, four hundred twenty".