20113142454 has 64 divisors (see below), whose sum is σ = 45095930880. Its totient is φ = 6644630880.

The previous prime is 20113142453. The next prime is 20113142471. The reversal of 20113142454 is 45424131102.

20113142454 is a `hidden beast` number, since 201 + 1 + 3 + 1 + 4 + 2 + 454 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113142453) 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 31 ways as a sum of consecutive naturals, for example, 2997267 + ... + 3003969.

It is an arithmetic number, because the mean of its divisors is an integer number (704623920).

Almost surely, 2^20113142454 is an apocalyptic number.

20113142454 is an abundant number, since it is smaller than the sum of its proper divisors (24982788426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20113142454 is a wasteful number, since it uses less digits than its factorization.

20113142454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7202 (or 7196 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 20113142454 its reverse (45424131102), we get a palindrome (65537273556).

The spelling of 20113142454 in words is "twenty billion, one hundred thirteen million, one hundred forty-two thousand, four hundred fifty-four".