20022431125 has 16 divisors (see below), whose sum is σ = 25794063360. Its totient is φ = 15501234000.

The previous prime is 20022431123. The next prime is 20022431129. The reversal of 20022431125 is 52113422002.

It is a happy number.

It is not a de Polignac number, because 20022431125 - 2¹ = 20022431123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20022431096 and 20022431105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022431123) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2579665 + ... + 2587414.

It is an arithmetic number, because the mean of its divisors is an integer number (1612128960).

Almost surely, 2^20022431125 is an apocalyptic number.

20022431125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20022431125 is a deficient number, since it is larger than the sum of its proper divisors (5771632235).

20022431125 is an equidigital number, since it uses as much as digits as its factorization.

20022431125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5167125 (or 5167115 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 20022431125 its reverse (52113422002), we get a palindrome (72135853127).

The spelling of 20022431125 in words is "twenty billion, twenty-two million, four hundred thirty-one thousand, one hundred twenty-five".