1220431140239 has 2 divisors, whose sum is σ = 1220431140240. Its totient is φ = 1220431140238.

The previous prime is 1220431140223. The next prime is 1220431140259. The reversal of 1220431140239 is 9320411340221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220431140239 - 2⁴ = 1220431140223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220431140259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610215570119 + 610215570120.

It is an arithmetic number, because the mean of its divisors is an integer number (610215570120).

Almost surely, 2^{1220431140239} is an apocalyptic number.

1220431140239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220431140239 is an equidigital number, since it uses as much as digits as its factorization.

1220431140239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 1220431140239 in words is "one trillion, two hundred twenty billion, four hundred thirty-one million, one hundred forty thousand, two hundred thirty-nine".