921100880039 has 2 divisors, whose sum is σ = 921100880040. Its totient is φ = 921100880038.

The previous prime is 921100880009. The next prime is 921100880059. The reversal of 921100880039 is 930088001129.

921100880039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 921100880039 - 2²⁸ = 920832444583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 921100879978 and 921100880005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (921100880009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460550440019 + 460550440020.

It is an arithmetic number, because the mean of its divisors is an integer number (460550440020).

Almost surely, 2^921100880039 is an apocalyptic number.

921100880039 is a deficient number, since it is larger than the sum of its proper divisors (1).

921100880039 is an equidigital number, since it uses as much as digits as its factorization.

921100880039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 41.

The spelling of 921100880039 in words is "nine hundred twenty-one billion, one hundred million, eight hundred eighty thousand, thirty-nine".