1203020120 has 64 divisors (see below), whose sum is σ = 2753805600. Its totient is φ = 472919040.

The previous prime is 1203020081. The next prime is 1203020167. The reversal of 1203020120 is 210203021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643427 + ... + 645293.

Almost surely, 2^1203020120 is an apocalyptic number.

1203020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1203020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1376902800).

1203020120 is an abundant number, since it is smaller than the sum of its proper divisors (1550785480).

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

1203020120 is a wasteful number, since it uses less digits than its factorization.

1203020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148 (or 2144 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1203020120 is about 34684.5804356922. The cubic root of 1203020120 is about 1063.5493102259.

Adding to 1203020120 its reverse (210203021), we get a palindrome (1413223141).

The spelling of 1203020120 in words is "one billion, two hundred three million, twenty thousand, one hundred twenty".