1220131039 has 2 divisors, whose sum is σ = 1220131040. Its totient is φ = 1220131038.

The previous prime is 1220131027. The next prime is 1220131043. The reversal of 1220131039 is 9301310221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220131039 - 2²³ = 1211742431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220131069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610065519 + 610065520.

It is an arithmetic number, because the mean of its divisors is an integer number (610065520).

Almost surely, 2^1220131039 is an apocalyptic number.

1220131039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220131039 is an equidigital number, since it uses as much as digits as its factorization.

1220131039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1220131039 is about 34930.3741606070. The cubic root of 1220131039 is about 1068.5679853550.

The spelling of 1220131039 in words is "one billion, two hundred twenty million, one hundred thirty-one thousand, thirty-nine".