1230100120 has 32 divisors (see below), whose sum is σ = 2769080400. Its totient is φ = 491799168.

The previous prime is 1230100117. The next prime is 1230100169. The reversal of 1230100120 is 210010321.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1230100097 and 1230100106.

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, 91171 + ... + 103789.

Almost surely, 2^1230100120 is an apocalyptic number.

1230100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230100120 is an abundant number, since it is smaller than the sum of its proper divisors (1538980280).

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

1230100120 is a wasteful number, since it uses less digits than its factorization.

1230100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15067 (or 15063 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1230100120 is about 35072.7831801242. The cubic root of 1230100120 is about 1071.4703400944.

Adding to 1230100120 its reverse (210010321), we get a palindrome (1440110441).

The spelling of 1230100120 in words is "one billion, two hundred thirty million, one hundred thousand, one hundred twenty".