1442342235991 has 2 divisors, whose sum is σ = 1442342235992. Its totient is φ = 1442342235990.

The previous prime is 1442342235979. The next prime is 1442342236003. The reversal of 1442342235991 is 1995322432441.

It is a balanced prime because it is at equal distance from previous prime (1442342235979) and next prime (1442342236003).

It is a cyclic number.

It is not a de Polignac number, because 1442342235991 - 2²⁵ = 1442308681559 is a prime.

It is a super-2 number, since 2×1442342235991² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442342235911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721171117995 + 721171117996.

It is an arithmetic number, because the mean of its divisors is an integer number (721171117996).

Almost surely, 2^{1442342235991} is an apocalyptic number.

1442342235991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442342235991 is an equidigital number, since it uses as much as digits as its factorization.

1442342235991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 49.

The spelling of 1442342235991 in words is "one trillion, four hundred forty-two billion, three hundred forty-two million, two hundred thirty-five thousand, nine hundred ninety-one".