1311226230631 has 8 divisors (see below), whose sum is σ = 1388367288144. Its totient is φ = 1234086295680.

The previous prime is 1311226230569. The next prime is 1311226230673. The reversal of 1311226230631 is 1360326221131.

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 1311226230631 - 2¹¹ = 1311226228583 is a prime.

It is a super-2 number, since 2×1311226230631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311226230593 and 1311226230602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311226231631) 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, 3925336 + ... + 4246258.

It is an arithmetic number, because the mean of its divisors is an integer number (173545911018).

Almost surely, 2^{1311226230631} is an apocalyptic number.

1311226230631 is a deficient number, since it is larger than the sum of its proper divisors (77141057513).

1311226230631 is a wasteful number, since it uses less digits than its factorization.

1311226230631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561281.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 1311226230631 in words is "one trillion, three hundred eleven billion, two hundred twenty-six million, two hundred thirty thousand, six hundred thirty-one".