1200123110 has 16 divisors (see below), whose sum is σ = 2162115936. Its totient is φ = 479628288.

The previous prime is 1200123103. The next prime is 1200123131. The reversal of 1200123110 is 113210021.

It is a junction number, because it is equal to n+sod(n) for n = 1200123091 and 1200123100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40514 + ... + 63573.

It is an arithmetic number, because the mean of its divisors is an integer number (135132246).

Almost surely, 2^1200123110 is an apocalyptic number.

1200123110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200123110 is a deficient number, since it is larger than the sum of its proper divisors (961992826).

1200123110 is a wasteful number, since it uses less digits than its factorization.

1200123110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105247.

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

The square root of 1200123110 is about 34642.7930455961. The cubic root of 1200123110 is about 1062.6949079112.

Adding to 1200123110 its reverse (113210021), we get a palindrome (1313333131).

The spelling of 1200123110 in words is "one billion, two hundred million, one hundred twenty-three thousand, one hundred ten".