1310120001 has 20 divisors (see below), whose sum is σ = 2002611952. Its totient is φ = 853099128.

The previous prime is 1310119981. The next prime is 1310120003. The reversal of 1310120001 is 1000210131.

It is not a de Polignac number, because 1310120001 - 2⁵ = 1310119969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1310120003) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 184591 + ... + 191556.

Almost surely, 2^1310120001 is an apocalyptic number.

It is an amenable number.

1310120001 is a deficient number, since it is larger than the sum of its proper divisors (692491951).

1310120001 is an equidigital number, since it uses as much as digits as its factorization.

1310120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376202 (or 376193 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1310120001 is about 36195.5798544518. The cubic root of 1310120001 is about 1094.2175908258.

Adding to 1310120001 its reverse (1000210131), we get a palindrome (2310330132).

The spelling of 1310120001 in words is "one billion, three hundred ten million, one hundred twenty thousand, one".