1300120100 has 36 divisors (see below), whose sum is σ = 2850367044. Its totient is φ = 514682880.

The previous prime is 1300120013. The next prime is 1300120123. The reversal of 1300120100 is 10210031.

It can be written as a sum of positive squares in 6 ways, for example, as 22486564 + 1277633536 = 4742^2 + 35744^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57317 + ... + 76716.

Almost surely, 2^1300120100 is an apocalyptic number.

1300120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300120100 is an abundant number, since it is smaller than the sum of its proper divisors (1550246944).

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

1300120100 is a wasteful number, since it uses less digits than its factorization.

1300120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134144 (or 134137 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 1300120100 is about 36057.1782035145. The cubic root of 1300120100 is about 1091.4264913301.

Adding to 1300120100 its reverse (10210031), we get a palindrome (1310330131).

The spelling of 1300120100 in words is "one billion, three hundred million, one hundred twenty thousand, one hundred".