2111452532521 has 16 divisors (see below), whose sum is σ = 2230031606400. Its totient is φ = 1993629456000.

The previous prime is 2111452532509. The next prime is 2111452532593. The reversal of 2111452532521 is 1252352541112.

It is a cyclic number.

It is not a de Polignac number, because 2111452532521 - 2⁵ = 2111452532489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111452532821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6787060 + ... + 7091338.

It is an arithmetic number, because the mean of its divisors is an integer number (139376975400).

Almost surely, 2^{2111452532521} is an apocalyptic number.

It is an amenable number.

2111452532521 is a deficient number, since it is larger than the sum of its proper divisors (118579073879).

2111452532521 is a wasteful number, since it uses less digits than its factorization.

2111452532521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305520.

The product of its digits is 24000, while the sum is 34.

The spelling of 2111452532521 in words is "two trillion, one hundred eleven billion, four hundred fifty-two million, five hundred thirty-two thousand, five hundred twenty-one".