12020545411 has 16 divisors (see below), whose sum is σ = 13849325568. Its totient is φ = 10219860000.

The previous prime is 12020545403. The next prime is 12020545423. The reversal of 12020545411 is 11454502021.

It is not a de Polignac number, because 12020545411 - 2³ = 12020545403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020543411) 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, 732846 + ... + 749068.

It is an arithmetic number, because the mean of its divisors is an integer number (865582848).

Almost surely, 2^12020545411 is an apocalyptic number.

12020545411 is a deficient number, since it is larger than the sum of its proper divisors (1828780157).

12020545411 is a wasteful number, since it uses less digits than its factorization.

12020545411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17082.

The product of its (nonzero) digits is 1600, while the sum is 25.

The spelling of 12020545411 in words is "twelve billion, twenty million, five hundred forty-five thousand, four hundred eleven".