20112425451 has 12 divisors (see below), whose sum is σ = 29322789912. Its totient is φ = 13282971936.

The previous prime is 20112425449. The next prime is 20112425507. The reversal of 20112425451 is 15452421102.

It is a happy number.

20112425451 is a `hidden beast` number, since 2 + 0 + 112 + 4 + 2 + 545 + 1 = 666.

It is not a de Polignac number, because 20112425451 - 2¹ = 20112425449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20112425441) 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 11 ways as a sum of consecutive naturals, for example, 10441626 + ... + 10443551.

It is an arithmetic number, because the mean of its divisors is an integer number (2443565826).

Almost surely, 2^20112425451 is an apocalyptic number.

20112425451 is a deficient number, since it is larger than the sum of its proper divisors (9210364461).

20112425451 is a wasteful number, since it uses less digits than its factorization.

20112425451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20885290 (or 20885287 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 20112425451 its reverse (15452421102), we get a palindrome (35564846553).

The spelling of 20112425451 in words is "twenty billion, one hundred twelve million, four hundred twenty-five thousand, four hundred fifty-one".