1131211214331 has 48 divisors (see below), whose sum is σ = 1715101423392. Its totient is φ = 662183216640.

The previous prime is 1131211214317. The next prime is 1131211214339. The reversal of 1131211214331 is 1334121121311.

It is not a de Polignac number, because 1131211214331 - 2⁶ = 1131211214267 is a prime.

It is a super-2 number, since 2×1131211214331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131211214339) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1532661 + ... + 2147433.

It is an arithmetic number, because the mean of its divisors is an integer number (35731279654).

Almost surely, 2^{1131211214331} is an apocalyptic number.

1131211214331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1131211214331 is a deficient number, since it is larger than the sum of its proper divisors (583890209061).

1131211214331 is a wasteful number, since it uses less digits than its factorization.

1131211214331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614972 (or 614961 counting only the distinct ones).

The product of its digits is 432, while the sum is 24.

Adding to 1131211214331 its reverse (1334121121311), we get a palindrome (2465332335642).

The spelling of 1131211214331 in words is "one trillion, one hundred thirty-one billion, two hundred eleven million, two hundred fourteen thousand, three hundred thirty-one".