1312302011121 has 12 divisors (see below), whose sum is σ = 1904530988880. Its totient is φ = 870721712280.

The previous prime is 1312302011057. The next prime is 1312302011179. The reversal of 1312302011121 is 1211102032131.

1312302011121 is a `hidden beast` number, since 1 + 312 + 30 + 201 + 1 + 121 = 666.

It is not a de Polignac number, because 1312302011121 - 2⁶ = 1312302011057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312302011094 and 1312302011103.

It is not an unprimeable number, because it can be changed into a prime (1312302011191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 345522591 + ... + 345526388.

It is an arithmetic number, because the mean of its divisors is an integer number (158710915740).

Almost surely, 2^{1312302011121} is an apocalyptic number.

It is an amenable number.

1312302011121 is a deficient number, since it is larger than the sum of its proper divisors (592228977759).

1312302011121 is a wasteful number, since it uses less digits than its factorization.

1312302011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691049196 (or 691049193 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1312302011121 its reverse (1211102032131), we get a palindrome (2523404043252).

The spelling of 1312302011121 in words is "one trillion, three hundred twelve billion, three hundred two million, eleven thousand, one hundred twenty-one".