20413121359 has 2 divisors, whose sum is σ = 20413121360. Its totient is φ = 20413121358.

The previous prime is 20413121347. The next prime is 20413121419. The reversal of 20413121359 is 95312131402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20413121359 - 2⁷ = 20413121231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20413121359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20413121329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206560679 + 10206560680.

It is an arithmetic number, because the mean of its divisors is an integer number (10206560680).

Almost surely, 2^20413121359 is an apocalyptic number.

20413121359 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413121359 is an equidigital number, since it uses as much as digits as its factorization.

20413121359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 20413121359 in words is "twenty billion, four hundred thirteen million, one hundred twenty-one thousand, three hundred fifty-nine".