1220431140259 has 2 divisors, whose sum is σ = 1220431140260. Its totient is φ = 1220431140258.

The previous prime is 1220431140239. The next prime is 1220431140283. The reversal of 1220431140259 is 9520411340221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220431140259 - 2²⁷ = 1220296922531 is a prime.

It is a super-2 number, since 2×1220431140259² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1220431140239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610215570129 + 610215570130.

It is an arithmetic number, because the mean of its divisors is an integer number (610215570130).

Almost surely, 2^{1220431140259} is an apocalyptic number.

1220431140259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220431140259 is an equidigital number, since it uses as much as digits as its factorization.

1220431140259 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 34.

The spelling of 1220431140259 in words is "one trillion, two hundred twenty billion, four hundred thirty-one million, one hundred forty thousand, two hundred fifty-nine".