23420333221111 has 4 divisors (see below), whose sum is σ = 23538023338000. Its totient is φ = 23302643104224.

The previous prime is 23420333221057. The next prime is 23420333221127. The reversal of 23420333221111 is 11112233302432.

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 23420333221111 - 2³⁵ = 23385973482743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23420333221111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420333221141) 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, 58845058146 + ... + 58845058543.

It is an arithmetic number, because the mean of its divisors is an integer number (5884505834500).

Almost surely, 2^{23420333221111} is an apocalyptic number.

23420333221111 is a deficient number, since it is larger than the sum of its proper divisors (117690116889).

23420333221111 is a wasteful number, since it uses less digits than its factorization.

23420333221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117690116888.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 23420333221111 its reverse (11112233302432), we get a palindrome (34532566523543).

The spelling of 23420333221111 in words is "twenty-three trillion, four hundred twenty billion, three hundred thirty-three million, two hundred twenty-one thousand, one hundred eleven".