1242073302139 has 2 divisors, whose sum is σ = 1242073302140. Its totient is φ = 1242073302138.

The previous prime is 1242073302109. The next prime is 1242073302187. The reversal of 1242073302139 is 9312033702421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1242073302139 - 2¹³ = 1242073293947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1242073302098 and 1242073302107.

It is not a weakly prime, because it can be changed into another prime (1242073302109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621036651069 + 621036651070.

It is an arithmetic number, because the mean of its divisors is an integer number (621036651070).

Almost surely, 2^{1242073302139} is an apocalyptic number.

1242073302139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242073302139 is an equidigital number, since it uses as much as digits as its factorization.

1242073302139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 1242073302139 in words is "one trillion, two hundred forty-two billion, seventy-three million, three hundred two thousand, one hundred thirty-nine".