2113787333421 has 12 divisors (see below), whose sum is σ = 3054374650080. Its totient is φ = 1408671734280.

The previous prime is 2113787333407. The next prime is 2113787333429. The reversal of 2113787333421 is 1243337873112.

2113787333421 is a `hidden beast` number, since 2 + 113 + 7 + 87 + 3 + 33 + 421 = 666.

It is not a de Polignac number, because 2113787333421 - 2⁷ = 2113787333293 is a prime.

It is a super-3 number, since 3×2113787333421³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113787333429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43292691 + ... + 43341488.

It is an arithmetic number, because the mean of its divisors is an integer number (254531220840).

Almost surely, 2^{2113787333421} is an apocalyptic number.

It is an amenable number.

2113787333421 is a deficient number, since it is larger than the sum of its proper divisors (940587316659).

2113787333421 is a wasteful number, since it uses less digits than its factorization.

2113787333421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86636896 (or 86636893 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The spelling of 2113787333421 in words is "two trillion, one hundred thirteen billion, seven hundred eighty-seven million, three hundred thirty-three thousand, four hundred twenty-one".