20245523103 has 32 divisors (see below), whose sum is σ = 32462976000. Its totient is φ = 12396133728.

The previous prime is 20245523083. The next prime is 20245523107. The reversal of 20245523103 is 30132554202.

It is a happy number.

20245523103 is a `hidden beast` number, since 2 + 0 + 2 + 4 + 552 + 3 + 103 = 666.

It is not a de Polignac number, because 20245523103 - 2²⁵ = 20211968671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20245523107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75075 + ... + 214772.

It is an arithmetic number, because the mean of its divisors is an integer number (1014468000).

Almost surely, 2^20245523103 is an apocalyptic number.

20245523103 is a deficient number, since it is larger than the sum of its proper divisors (12217452897).

20245523103 is a wasteful number, since it uses less digits than its factorization.

20245523103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290068 (or 290062 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The spelling of 20245523103 in words is "twenty billion, two hundred forty-five million, five hundred twenty-three thousand, one hundred three".