20423011125 has 64 divisors (see below), whose sum is σ = 37520630784. Its totient is φ = 9782600000.

The previous prime is 20423011117. The next prime is 20423011153. The reversal of 20423011125 is 52111032402.

It is not a de Polignac number, because 20423011125 - 2³ = 20423011117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 312550 + ... + 372200.

It is an arithmetic number, because the mean of its divisors is an integer number (586259856).

Almost surely, 2^20423011125 is an apocalyptic number.

20423011125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20423011125 is a deficient number, since it is larger than the sum of its proper divisors (17097619659).

20423011125 is a wasteful number, since it uses less digits than its factorization.

20423011125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59763 (or 59753 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 20423011125 its reverse (52111032402), we get a palindrome (72534043527).

The spelling of 20423011125 in words is "twenty billion, four hundred twenty-three million, eleven thousand, one hundred twenty-five".