11102021399 has 4 divisors (see below), whose sum is σ = 12688024464. Its totient is φ = 9516018336.

The previous prime is 11102021321. The next prime is 11102021453. The reversal of 11102021399 is 99312020111.

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 11102021399 - 2²⁰ = 11100972823 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 (11102021299) 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, 793001522 + ... + 793001535.

It is an arithmetic number, because the mean of its divisors is an integer number (3172006116).

Almost surely, 2^11102021399 is an apocalyptic number.

11102021399 is a deficient number, since it is larger than the sum of its proper divisors (1586003065).

11102021399 is an equidigital number, since it uses as much as digits as its factorization.

11102021399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586003064.

The product of its (nonzero) digits is 972, while the sum is 29.

The spelling of 11102021399 in words is "eleven billion, one hundred two million, twenty-one thousand, three hundred ninety-nine".