1001112442391 has 2 divisors, whose sum is σ = 1001112442392. Its totient is φ = 1001112442390.

The previous prime is 1001112442373. The next prime is 1001112442427. The reversal of 1001112442391 is 1932442111001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001112442391 is a prime.

It is a super-2 number, since 2×1001112442391² (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 (1001112442301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500556221195 + 500556221196.

It is an arithmetic number, because the mean of its divisors is an integer number (500556221196).

Almost surely, 2^{1001112442391} is an apocalyptic number.

1001112442391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001112442391 is an equidigital number, since it uses as much as digits as its factorization.

1001112442391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

Adding to 1001112442391 its reverse (1932442111001), we get a palindrome (2933554553392).

The spelling of 1001112442391 in words is "one trillion, one billion, one hundred twelve million, four hundred forty-two thousand, three hundred ninety-one".