2113151533521 has 32 divisors (see below), whose sum is σ = 3234541040640. Its totient is φ = 1202084468544.

The previous prime is 2113151533487. The next prime is 2113151533523. The reversal of 2113151533521 is 1253351513112.

It is not a de Polignac number, because 2113151533521 - 2⁷ = 2113151533393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2113151533523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7101886 + ... + 7393448.

It is an arithmetic number, because the mean of its divisors is an integer number (101079407520).

Almost surely, 2^{2113151533521} is an apocalyptic number.

2113151533521 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2113151533521 is a deficient number, since it is larger than the sum of its proper divisors (1121389507119).

2113151533521 is a wasteful number, since it uses less digits than its factorization.

2113151533521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293125.

The product of its digits is 13500, while the sum is 33.

The spelling of 2113151533521 in words is "two trillion, one hundred thirteen billion, one hundred fifty-one million, five hundred thirty-three thousand, five hundred twenty-one".