110021213320391 has 2 divisors, whose sum is σ = 110021213320392. Its totient is φ = 110021213320390.

The previous prime is 110021213320331. The next prime is 110021213320507. The reversal of 110021213320391 is 193023312120011.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110021213320391 is a prime.

It is a super-2 number, since 2×110021213320391² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110021213320331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55010606660195 + 55010606660196.

It is an arithmetic number, because the mean of its divisors is an integer number (55010606660196).

Almost surely, 2^{110021213320391} is an apocalyptic number.

110021213320391 is a deficient number, since it is larger than the sum of its proper divisors (1).

110021213320391 is an equidigital number, since it uses as much as digits as its factorization.

110021213320391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 110021213320391 in words is "one hundred ten trillion, twenty-one billion, two hundred thirteen million, three hundred twenty thousand, three hundred ninety-one".