111233120001 has 4 divisors (see below), whose sum is σ = 148310826672. Its totient is φ = 74155413332.

The previous prime is 111233119997. The next prime is 111233120023. The reversal of 111233120001 is 100021332111.

It is a happy number.

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 not a de Polignac number, because 111233120001 - 2² = 111233119997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111233120101) 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, 18538853331 + ... + 18538853336.

It is an arithmetic number, because the mean of its divisors is an integer number (37077706668).

Almost surely, 2^111233120001 is an apocalyptic number.

It is an amenable number.

111233120001 is a deficient number, since it is larger than the sum of its proper divisors (37077706671).

111233120001 is an equidigital number, since it uses as much as digits as its factorization.

111233120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37077706670.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 111233120001 its reverse (100021332111), we get a palindrome (211254452112).

The spelling of 111233120001 in words is "one hundred eleven billion, two hundred thirty-three million, one hundred twenty thousand, one".