10442101991 has 2 divisors, whose sum is σ = 10442101992. Its totient is φ = 10442101990.

The previous prime is 10442101973. The next prime is 10442102003. The reversal of 10442101991 is 19910124401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10442101991 - 2²² = 10437907687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10442101091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5221050995 + 5221050996.

It is an arithmetic number, because the mean of its divisors is an integer number (5221050996).

Almost surely, 2^10442101991 is an apocalyptic number.

10442101991 is a deficient number, since it is larger than the sum of its proper divisors (1).

10442101991 is an equidigital number, since it uses as much as digits as its factorization.

10442101991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 10442101991 in words is "ten billion, four hundred forty-two million, one hundred one thousand, nine hundred ninety-one".