1301020120 has 32 divisors (see below), whose sum is σ = 2933943120. Its totient is φ = 519226240.

The previous prime is 1301020073. The next prime is 1301020129. The reversal of 1301020120 is 210201031.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1301020097 and 1301020106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301020129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18991 + ... + 54430.

Almost surely, 2^1301020120 is an apocalyptic number.

1301020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301020120 is an abundant number, since it is smaller than the sum of its proper divisors (1632923000).

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

1301020120 is a wasteful number, since it uses less digits than its factorization.

1301020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73875 (or 73871 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1301020120 is about 36069.6564996120. The cubic root of 1301020120 is about 1091.6782832191.

Adding to 1301020120 its reverse (210201031), we get a palindrome (1511221151).

The spelling of 1301020120 in words is "one billion, three hundred one million, twenty thousand, one hundred twenty".