20012322425 has 24 divisors (see below), whose sum is σ = 26525802240. Its totient is φ = 14940252800.

The previous prime is 20012322401. The next prime is 20012322427. The reversal of 20012322425 is 52422321002.

It is not a de Polignac number, because 20012322425 - 2¹⁸ = 20012060281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20012322425.

It is not an unprimeable number, because it can be changed into a prime (20012322427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 400865 + ... + 448014.

It is an arithmetic number, because the mean of its divisors is an integer number (1105241760).

Almost surely, 2^20012322425 is an apocalyptic number.

20012322425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20012322425 is a deficient number, since it is larger than the sum of its proper divisors (6513479815).

20012322425 is a wasteful number, since it uses less digits than its factorization.

20012322425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848953 (or 848948 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 20012322425 its reverse (52422321002), we get a palindrome (72434643427).

The spelling of 20012322425 in words is "twenty billion, twelve million, three hundred twenty-two thousand, four hundred twenty-five".