111203220423 has 8 divisors (see below), whose sum is σ = 148379430528. Its totient is φ = 74081245304.

The previous prime is 111203220397. The next prime is 111203220431. The reversal of 111203220423 is 324022302111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111203220423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111203220423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111203220493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13553961 + ... + 13562162.

It is an arithmetic number, because the mean of its divisors is an integer number (18547428816).

Almost surely, 2^111203220423 is an apocalyptic number.

111203220423 is a deficient number, since it is larger than the sum of its proper divisors (37176210105).

111203220423 is a wasteful number, since it uses less digits than its factorization.

111203220423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27117493.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 111203220423 its reverse (324022302111), we get a palindrome (435225522534).

The spelling of 111203220423 in words is "one hundred eleven billion, two hundred three million, two hundred twenty thousand, four hundred twenty-three".