1201303120 has 40 divisors (see below), whose sum is σ = 2940035040. Its totient is φ = 455230080.

The previous prime is 1201303093. The next prime is 1201303123. The reversal of 1201303120 is 213031021.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1201303120² = 2886258372243468800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1201303120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201303123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393646 + ... + 396685.

It is an arithmetic number, because the mean of its divisors is an integer number (73500876).

Almost surely, 2^1201303120 is an apocalyptic number.

1201303120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201303120 is an abundant number, since it is smaller than the sum of its proper divisors (1738731920).

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

1201303120 is a wasteful number, since it uses less digits than its factorization.

1201303120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790363 (or 790357 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1201303120 is about 34659.8199649104. The cubic root of 1201303120 is about 1063.0430888160.

Adding to 1201303120 its reverse (213031021), we get a palindrome (1414334141).

The spelling of 1201303120 in words is "one billion, two hundred one million, three hundred three thousand, one hundred twenty".