1203100120 has 32 divisors (see below), whose sum is σ = 2713443120. Its totient is φ = 480090240.

The previous prime is 1203100117. The next prime is 1203100141. The reversal of 1203100120 is 210013021.

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 = 1203100097 and 1203100106.

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, 18882 + ... + 52561.

Almost surely, 2^1203100120 is an apocalyptic number.

1203100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203100120 is an abundant number, since it is smaller than the sum of its proper divisors (1510343000).

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

1203100120 is a wasteful number, since it uses less digits than its factorization.

1203100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71875 (or 71871 counting only the distinct ones).

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

The square root of 1203100120 is about 34685.7336667397. The cubic root of 1203100120 is about 1063.5728847994.

Adding to 1203100120 its reverse (210013021), we get a palindrome (1413113141).

The spelling of 1203100120 in words is "one billion, two hundred three million, one hundred thousand, one hundred twenty".