2121515443413 has 12 divisors (see below), whose sum is σ = 3107571918048. Its totient is φ = 1394423295720.

The previous prime is 2121515443373. The next prime is 2121515443417. The reversal of 2121515443413 is 3143445151212.

2121515443413 is a `hidden beast` number, since 2 + 1 + 2 + 151 + 54 + 43 + 413 = 666.

It is not a de Polignac number, because 2121515443413 - 2⁶ = 2121515443349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121515443417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1660027095 + ... + 1660028372.

It is an arithmetic number, because the mean of its divisors is an integer number (258964326504).

Almost surely, 2^{2121515443413} is an apocalyptic number.

It is an amenable number.

2121515443413 is a deficient number, since it is larger than the sum of its proper divisors (986056474635).

2121515443413 is a wasteful number, since it uses less digits than its factorization.

2121515443413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320055544 (or 3320055541 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The spelling of 2121515443413 in words is "two trillion, one hundred twenty-one billion, five hundred fifteen million, four hundred forty-three thousand, four hundred thirteen".