20523303104 has 28 divisors (see below), whose sum is σ = 40742923848. Its totient is φ = 10257369600.

The previous prime is 20523303089. The next prime is 20523303127. The reversal of 20523303104 is 40130332502.

It is a self number, because there is not a number n which added to its sum of digits gives 20523303104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90539 + ... + 221909.

Almost surely, 2^20523303104 is an apocalyptic number.

It is an amenable number.

20523303104 is a deficient number, since it is larger than the sum of its proper divisors (20219620744).

20523303104 is a wasteful number, since it uses less digits than its factorization.

20523303104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133824 (or 133814 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 20523303104 its reverse (40130332502), we get a palindrome (60653635606).

The spelling of 20523303104 in words is "twenty billion, five hundred twenty-three million, three hundred three thousand, one hundred four".