1301252120 has 32 divisors (see below), whose sum is σ = 3346077600. Its totient is φ = 446143488.

The previous prime is 1301252093. The next prime is 1301252159. The reversal of 1301252120 is 212521031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2323385 + ... + 2323944.

It is an arithmetic number, because the mean of its divisors is an integer number (104564925).

Almost surely, 2^1301252120 is an apocalyptic number.

1301252120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301252120 is an abundant number, since it is smaller than the sum of its proper divisors (2044825480).

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

1301252120 is a wasteful number, since it uses less digits than its factorization.

1301252120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647347 (or 4647343 counting only the distinct ones).

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

The square root of 1301252120 is about 36072.8723558299. The cubic root of 1301252120 is about 1091.7431693047.

Adding to 1301252120 its reverse (212521031), we get a palindrome (1513773151).

The spelling of 1301252120 in words is "one billion, three hundred one million, two hundred fifty-two thousand, one hundred twenty".