1201352120 has 32 divisors (see below), whose sum is σ = 2704503600. Its totient is φ = 480281088.

The previous prime is 1201352063. The next prime is 1201352129. The reversal of 1201352120 is 212531021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201352129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78107 + ... + 92213.

Almost surely, 2^1201352120 is an apocalyptic number.

1201352120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201352120 is an abundant number, since it is smaller than the sum of its proper divisors (1503151480).

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

1201352120 is a wasteful number, since it uses less digits than its factorization.

1201352120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16247 (or 16243 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1201352120 is about 34660.5268280792. The cubic root of 1201352120 is about 1063.0575421216.

Adding to 1201352120 its reverse (212531021), we get a palindrome (1413883141).

The spelling of 1201352120 in words is "one billion, two hundred one million, three hundred fifty-two thousand, one hundred twenty".