1311312333031 has 8 divisors (see below), whose sum is σ = 1369190338560. Its totient is φ = 1253506363032.

The previous prime is 1311312333011. The next prime is 1311312333101. The reversal of 1311312333031 is 1303332131131.

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 1311312333031 - 2⁵ = 1311312332999 is a prime.

It is a super-2 number, since 2×1311312333031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1311312332987 and 1311312333005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311312333011) 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, 17971671 + ... + 18044488.

It is an arithmetic number, because the mean of its divisors is an integer number (171148792320).

Almost surely, 2^{1311312333031} is an apocalyptic number.

1311312333031 is a deficient number, since it is larger than the sum of its proper divisors (57878005529).

1311312333031 is a wasteful number, since it uses less digits than its factorization.

1311312333031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36017765.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 1311312333031 its reverse (1303332131131), we get a palindrome (2614644464162).

The spelling of 1311312333031 in words is "one trillion, three hundred eleven billion, three hundred twelve million, three hundred thirty-three thousand, thirty-one".