1312101 has 24 divisors (see below), whose sum is σ = 2208960. Its totient is φ = 734976.

The previous prime is 1312093. The next prime is 1312133. The reversal of 1312101 is 1012131.

It is not a de Polignac number, because 1312101 - 2³ = 1312093 is a prime.

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

It is a Curzon number.

1312101 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3541 + ... + 3893.

It is an arithmetic number, because the mean of its divisors is an integer number (92040).

2^1312101 is an apocalyptic number.

It is an amenable number.

1312101 is a deficient number, since it is larger than the sum of its proper divisors (896859).

1312101 is a wasteful number, since it uses less digits than its factorization.

1312101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 422 counting only the distinct ones).

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

The square root of 1312101 is about 1145.4697726261. The cubic root of 1312101 is about 109.4768825909.

Adding to 1312101 its reverse (1012131), we get a palindrome (2324232).

The spelling of 1312101 in words is "one million, three hundred twelve thousand, one hundred one".