20113353479 has 2 divisors, whose sum is σ = 20113353480. Its totient is φ = 20113353478.

The previous prime is 20113353457. The next prime is 20113353493. The reversal of 20113353479 is 97435331102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20113353479 - 2⁸ = 20113353223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20113353679) 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 as a sum of consecutive naturals, namely, 10056676739 + 10056676740.

It is an arithmetic number, because the mean of its divisors is an integer number (10056676740).

Almost surely, 2^20113353479 is an apocalyptic number.

20113353479 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113353479 is an equidigital number, since it uses as much as digits as its factorization.

20113353479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 20113353479 in words is "twenty billion, one hundred thirteen million, three hundred fifty-three thousand, four hundred seventy-nine".