1120100123 has 4 divisors (see below), whose sum is σ = 1120206240. Its totient is φ = 1119994008.

The previous prime is 1120100087. The next prime is 1120100227. The reversal of 1120100123 is 3210010211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1120100123 - 2⁸ = 1120099867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120100623) 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, 35228 + ... + 59001.

It is an arithmetic number, because the mean of its divisors is an integer number (280051560).

Almost surely, 2^1120100123 is an apocalyptic number.

1120100123 is a deficient number, since it is larger than the sum of its proper divisors (106117).

1120100123 is an equidigital number, since it uses as much as digits as its factorization.

1120100123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106116.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1120100123 is about 33467.8969013591. The cubic root of 1120100123 is about 1038.5297651676.

Adding to 1120100123 its reverse (3210010211), we get a palindrome (4330110334).

The spelling of 1120100123 in words is "one billion, one hundred twenty million, one hundred thousand, one hundred twenty-three".