20113430479 has 2 divisors, whose sum is σ = 20113430480. Its totient is φ = 20113430478.

The previous prime is 20113430453. The next prime is 20113430483. The reversal of 20113430479 is 97403431102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20113430479 - 2²¹ = 20111333327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20113430429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056715239 + 10056715240.

It is an arithmetic number, because the mean of its divisors is an integer number (10056715240).

Almost surely, 2^20113430479 is an apocalyptic number.

20113430479 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113430479 is an equidigital number, since it uses as much as digits as its factorization.

20113430479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 20113430479 in words is "twenty billion, one hundred thirteen million, four hundred thirty thousand, four hundred seventy-nine".