1120123100 has 36 divisors (see below), whose sum is σ = 2444754984. Its totient is φ = 445452480.

The previous prime is 1120123099. The next prime is 1120123111. The reversal of 1120123100 is 13210211.

It is a super-2 number, since 2×1120123100² = 2509351518307220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15074 + ... + 49673.

Almost surely, 2^1120123100 is an apocalyptic number.

1120123100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120123100 is an abundant number, since it is smaller than the sum of its proper divisors (1324631884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1120123100 is a wasteful number, since it uses less digits than its factorization.

1120123100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64934 (or 64927 counting only the distinct ones).

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

The square root of 1120123100 is about 33468.2401688526. The cubic root of 1120123100 is about 1038.5368663587.

Adding to 1120123100 its reverse (13210211), we get a palindrome (1133333311).

The spelling of 1120123100 in words is "one billion, one hundred twenty million, one hundred twenty-three thousand, one hundred".