20113430454 has 48 divisors (see below), whose sum is σ = 47230349712. Its totient is φ = 6149317824.

The previous prime is 20113430453. The next prime is 20113430479. The reversal of 20113430454 is 45403431102.

It is a happy number.

20113430454 is a `hidden beast` number, since 201 + 1 + 3 + 4 + 3 + 0 + 454 = 666.

It is a super-2 number, since 2×20113430454² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113430453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237004 + ... + 310479.

It is an arithmetic number, because the mean of its divisors is an integer number (983965619).

Almost surely, 2^20113430454 is an apocalyptic number.

20113430454 is an abundant number, since it is smaller than the sum of its proper divisors (27116919258).

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

20113430454 is a wasteful number, since it uses less digits than its factorization.

20113430454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547661 (or 547658 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 20113430454 its reverse (45403431102), we get a palindrome (65516861556).

The spelling of 20113430454 in words is "twenty billion, one hundred thirteen million, four hundred thirty thousand, four hundred fifty-four".