1313310203121 has 32 divisors (see below), whose sum is σ = 2081345102848. Its totient is φ = 720993752640.

The previous prime is 1313310203063. The next prime is 1313310203189. The reversal of 1313310203121 is 1213020133131.

It is a happy number.

It is not a de Polignac number, because 1313310203121 - 2⁶ = 1313310203057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1313310203921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11866111 + ... + 11976276.

It is an arithmetic number, because the mean of its divisors is an integer number (65042034464).

Almost surely, 2^{1313310203121} is an apocalyptic number.

It is an amenable number.

1313310203121 is a deficient number, since it is larger than the sum of its proper divisors (768034899727).

1313310203121 is a wasteful number, since it uses less digits than its factorization.

1313310203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23842501.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1313310203121 its reverse (1213020133131), we get a palindrome (2526330336252).

The spelling of 1313310203121 in words is "one trillion, three hundred thirteen billion, three hundred ten million, two hundred three thousand, one hundred twenty-one".