1301230001220 has 48 divisors (see below), whose sum is σ = 3643627494528. Its totient is φ = 346977191680.

The previous prime is 1301230001209. The next prime is 1301230001231. The reversal of 1301230001220 is 221000321031.

It is an interprime number because it is at equal distance from previous prime (1301230001209) and next prime (1301230001231).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1301230001220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 677872 + ... + 1749848.

It is an arithmetic number, because the mean of its divisors is an integer number (75908906136).

Almost surely, 2^{1301230001220} is an apocalyptic number.

1301230001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301230001220 is an abundant number, since it is smaller than the sum of its proper divisors (2342397493308).

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

1301230001220 is a wasteful number, since it uses less digits than its factorization.

1301230001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092220 (or 1092218 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1301230001220 its reverse (221000321031), we get a palindrome (1522230322251).

The spelling of 1301230001220 in words is "one trillion, three hundred one billion, two hundred thirty million, one thousand, two hundred twenty".