20113430452 has 24 divisors (see below), whose sum is σ = 35340883200. Its totient is φ = 10016117280.

The previous prime is 20113430437. The next prime is 20113430453. The reversal of 20113430452 is 25403431102.

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 7 ways as a sum of consecutive naturals, for example, 1022938 + ... + 1042414.

It is an arithmetic number, because the mean of its divisors is an integer number (1472536800).

Almost surely, 2^20113430452 is an apocalyptic number.

It is an amenable number.

20113430452 is a deficient number, since it is larger than the sum of its proper divisors (15227452748).

20113430452 is a wasteful number, since it uses less digits than its factorization.

20113430452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20511 (or 20509 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 20113430452 its reverse (25403431102), we get a palindrome (45516861554).

The spelling of 20113430452 in words is "twenty billion, one hundred thirteen million, four hundred thirty thousand, four hundred fifty-two".