1311442423031 has 32 divisors (see below), whose sum is σ = 1509133909248. Its totient is φ = 1128931499520.

The previous prime is 1311442423013. The next prime is 1311442423097. The reversal of 1311442423031 is 1303242441131.

It is a cyclic number.

It is not a de Polignac number, because 1311442423031 - 2¹⁸ = 1311442160887 is a prime.

It is a super-2 number, since 2×1311442423031² (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 = 1311442422985 and 1311442423003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311442423931) 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, 11868620 + ... + 11978606.

It is an arithmetic number, because the mean of its divisors is an integer number (47160434664).

Almost surely, 2^{1311442423031} is an apocalyptic number.

1311442423031 is a deficient number, since it is larger than the sum of its proper divisors (197691486217).

1311442423031 is a wasteful number, since it uses less digits than its factorization.

1311442423031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110511.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 1311442423031 its reverse (1303242441131), we get a palindrome (2614684864162).

The spelling of 1311442423031 in words is "one trillion, three hundred eleven billion, four hundred forty-two million, four hundred twenty-three thousand, thirty-one".