20143420259 has 2 divisors, whose sum is σ = 20143420260. Its totient is φ = 20143420258.

The previous prime is 20143420211. The next prime is 20143420267. The reversal of 20143420259 is 95202434102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20143420259 is a prime.

It is not a weakly prime, because it can be changed into another prime (20143420559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10071710129 + 10071710130.

It is an arithmetic number, because the mean of its divisors is an integer number (10071710130).

Almost surely, 2^20143420259 is an apocalyptic number.

20143420259 is a deficient number, since it is larger than the sum of its proper divisors (1).

20143420259 is an equidigital number, since it uses as much as digits as its factorization.

20143420259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 20143420259 in words is "twenty billion, one hundred forty-three million, four hundred twenty thousand, two hundred fifty-nine".