1230442023491 has 2 divisors, whose sum is σ = 1230442023492. Its totient is φ = 1230442023490.

The previous prime is 1230442023467. The next prime is 1230442023511. The reversal of 1230442023491 is 1943202440321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230442023491 - 2⁶ = 1230442023427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230442023191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615221011745 + 615221011746.

It is an arithmetic number, because the mean of its divisors is an integer number (615221011746).

Almost surely, 2^{1230442023491} is an apocalyptic number.

1230442023491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230442023491 is an equidigital number, since it uses as much as digits as its factorization.

1230442023491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 1230442023491 in words is "one trillion, two hundred thirty billion, four hundred forty-two million, twenty-three thousand, four hundred ninety-one".