801309890111 has 4 divisors (see below), whose sum is σ = 801313590000. Its totient is φ = 801306190224.

The previous prime is 801309890093. The next prime is 801309890119. The reversal of 801309890111 is 111098903108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 801309890111 - 2⁶ = 801309890047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801309890119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1503446 + ... + 1965443.

It is an arithmetic number, because the mean of its divisors is an integer number (200328397500).

Almost surely, 2^801309890111 is an apocalyptic number.

801309890111 is a deficient number, since it is larger than the sum of its proper divisors (3699889).

801309890111 is a wasteful number, since it uses less digits than its factorization.

801309890111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699888.

The product of its (nonzero) digits is 15552, while the sum is 41.

The spelling of 801309890111 in words is "eight hundred one billion, three hundred nine million, eight hundred ninety thousand, one hundred eleven".