1311013312121 has 8 divisors (see below), whose sum is σ = 1312827353280. Its totient is φ = 1309199648688.

The previous prime is 1311013312099. The next prime is 1311013312183. The reversal of 1311013312121 is 1212133101131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311013312121 - 2²⁶ = 1310946203257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311013312093 and 1311013312102.

It is not an unprimeable number, because it can be changed into a prime (1311013312321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7244675 + ... + 7423431.

It is an arithmetic number, because the mean of its divisors is an integer number (164103419160).

Almost surely, 2^{1311013312121} is an apocalyptic number.

It is an amenable number.

1311013312121 is a deficient number, since it is larger than the sum of its proper divisors (1814041159).

1311013312121 is an equidigital number, since it uses as much as digits as its factorization.

1311013312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188863.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1311013312121 its reverse (1212133101131), we get a palindrome (2523146413252).

The spelling of 1311013312121 in words is "one trillion, three hundred eleven billion, thirteen million, three hundred twelve thousand, one hundred twenty-one".