1131202413331 has 4 divisors (see below), whose sum is σ = 1131683573664. Its totient is φ = 1130721253000.

The previous prime is 1131202413311. The next prime is 1131202413391. The reversal of 1131202413331 is 1333142021311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1131202413331 - 2⁹ = 1131202412819 is a prime.

It is a super-2 number, since 2×1131202413331² (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 = 1131202413296 and 1131202413305.

It is not an unprimeable number, because it can be changed into a prime (1131202413311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240576640 + ... + 240581341.

It is an arithmetic number, because the mean of its divisors is an integer number (282920893416).

Almost surely, 2^{1131202413331} is an apocalyptic number.

1131202413331 is a deficient number, since it is larger than the sum of its proper divisors (481160333).

1131202413331 is an equidigital number, since it uses as much as digits as its factorization.

1131202413331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481160332.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 1131202413331 its reverse (1333142021311), we get a palindrome (2464344434642).

It can be divided in two parts, 11312024133 and 31, that added together give a square (11312024164 = 106358²).

The spelling of 1131202413331 in words is "one trillion, one hundred thirty-one billion, two hundred two million, four hundred thirteen thousand, three hundred thirty-one".