11880000511 has 4 divisors (see below), whose sum is σ = 11880487672. Its totient is φ = 11879513352.

The previous prime is 11880000493. The next prime is 11880000523. The reversal of 11880000511 is 11500008811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11500008811 = 199 ⋅57788989.

It is a cyclic number.

It is not a de Polignac number, because 11880000511 - 2¹⁷ = 11879869439 is a prime.

It is a super-2 number, since 2×11880000511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11880000541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204960 + ... + 256453.

It is an arithmetic number, because the mean of its divisors is an integer number (2970121918).

Almost surely, 2^11880000511 is an apocalyptic number.

11880000511 is the 58261-st centered heptagonal number.

11880000511 is a deficient number, since it is larger than the sum of its proper divisors (487161).

11880000511 is an equidigital number, since it uses as much as digits as its factorization.

11880000511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487160.

The product of its (nonzero) digits is 320, while the sum is 25.

The spelling of 11880000511 in words is "eleven billion, eight hundred eighty million, five hundred eleven", and thus it is an aban number.