1311241466331 has 32 divisors (see below), whose sum is σ = 1966939444800. Its totient is φ = 873993387744.

The previous prime is 1311241466329. The next prime is 1311241466369. The reversal of 1311241466331 is 1336641421131.

1311241466331 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 2 + 4 + 14 + 6 + 633 + 1 = 666.

It is not a de Polignac number, because 1311241466331 - 2¹ = 1311241466329 is a prime.

It is a super-2 number, since 2×1311241466331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311241466131) 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, 11923465 + ... + 12032933.

It is an arithmetic number, because the mean of its divisors is an integer number (61466857650).

Almost surely, 2^{1311241466331} is an apocalyptic number.

1311241466331 is a deficient number, since it is larger than the sum of its proper divisors (655697978469).

1311241466331 is an frugal number, since it uses more digits than its factorization.

1311241466331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114967 (or 114949 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

Adding to 1311241466331 its reverse (1336641421131), we get a palindrome (2647882887462).

The spelling of 1311241466331 in words is "one trillion, three hundred eleven billion, two hundred forty-one million, four hundred sixty-six thousand, three hundred thirty-one".