20611230523 has 24 divisors (see below), whose sum is σ = 23029588400. Its totient is φ = 18336882816.

The previous prime is 20611230509. The next prime is 20611230547. The reversal of 20611230523 is 32503211602.

It is not a de Polignac number, because 20611230523 - 2³³ = 12021295931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20611230503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7750168 + ... + 7752826.

Almost surely, 2^20611230523 is an apocalyptic number.

20611230523 is a deficient number, since it is larger than the sum of its proper divisors (2418357877).

20611230523 is a wasteful number, since it uses less digits than its factorization.

20611230523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3439 (or 3410 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The spelling of 20611230523 in words is "twenty billion, six hundred eleven million, two hundred thirty thousand, five hundred twenty-three".