1200110123 has 4 divisors (see below), whose sum is σ = 1252288848. Its totient is φ = 1147931400.

The previous prime is 1200110117. The next prime is 1200110137. The reversal of 1200110123 is 3210110021.

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 1200110123 - 2³⁰ = 126368299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200110423) 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, 26089328 + ... + 26089373.

It is an arithmetic number, because the mean of its divisors is an integer number (313072212).

Almost surely, 2^1200110123 is an apocalyptic number.

1200110123 is a deficient number, since it is larger than the sum of its proper divisors (52178725).

1200110123 is an equidigital number, since it uses as much as digits as its factorization.

1200110123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52178724.

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

The square root of 1200110123 is about 34642.6056035051. The cubic root of 1200110123 is about 1062.6910746187.

Adding to 1200110123 its reverse (3210110021), we get a palindrome (4410220144).

The spelling of 1200110123 in words is "one billion, two hundred million, one hundred ten thousand, one hundred twenty-three".