11112032021 has 4 divisors (see below), whose sum is σ = 11595163872. Its totient is φ = 10628900172.

The previous prime is 11112032017. The next prime is 11112032023. The reversal of 11112032021 is 12023021111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12023021111 = 181 ⋅66425531.

It is a cyclic number.

It is not a de Polignac number, because 11112032021 - 2² = 11112032017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11112031987 and 11112032005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112032023) 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, 241565891 + ... + 241565936.

It is an arithmetic number, because the mean of its divisors is an integer number (2898790968).

Almost surely, 2^11112032021 is an apocalyptic number.

It is an amenable number.

11112032021 is a deficient number, since it is larger than the sum of its proper divisors (483131851).

11112032021 is an equidigital number, since it uses as much as digits as its factorization.

11112032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483131850.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11112032021 its reverse (12023021111), we get a palindrome (23135053132).

The spelling of 11112032021 in words is "eleven billion, one hundred twelve million, thirty-two thousand, twenty-one".