2231103323021 has 4 divisors (see below), whose sum is σ = 2233090059072. Its totient is φ = 2229116586972.

The previous prime is 2231103322991. The next prime is 2231103323023. The reversal of 2231103323021 is 1203233011322.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2231103323021 is a prime.

It is a super-3 number, since 3×2231103323021³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231103323023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993366341 + ... + 993368586.

It is an arithmetic number, because the mean of its divisors is an integer number (558272514768).

Almost surely, 2^{2231103323021} is an apocalyptic number.

It is an amenable number.

2231103323021 is a deficient number, since it is larger than the sum of its proper divisors (1986736051).

2231103323021 is a wasteful number, since it uses less digits than its factorization.

2231103323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986736050.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2231103323021 its reverse (1203233011322), we get a palindrome (3434336334343).

The spelling of 2231103323021 in words is "two trillion, two hundred thirty-one billion, one hundred three million, three hundred twenty-three thousand, twenty-one".