111203342321 has 16 divisors (see below), whose sum is σ = 120043895808. Its totient is φ = 102711628800.

The previous prime is 111203342317. The next prime is 111203342347. The reversal of 111203342321 is 123243302111.

It is a cyclic number.

It is not a de Polignac number, because 111203342321 - 2² = 111203342317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111203342381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155201 + ... + 496481.

It is an arithmetic number, because the mean of its divisors is an integer number (7502743488).

Almost surely, 2^111203342321 is an apocalyptic number.

It is an amenable number.

111203342321 is a deficient number, since it is larger than the sum of its proper divisors (8840553487).

111203342321 is a wasteful number, since it uses less digits than its factorization.

111203342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341792.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 111203342321 its reverse (123243302111), we get a palindrome (234446644432).

The spelling of 111203342321 in words is "one hundred eleven billion, two hundred three million, three hundred forty-two thousand, three hundred twenty-one".