1131203320131 has 16 divisors (see below), whose sum is σ = 1642400467200. Its totient is φ = 689808194208.

The previous prime is 1131203320129. The next prime is 1131203320133. The reversal of 1131203320131 is 1310233021311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1131203320129) and next prime (1131203320133).

It is not a de Polignac number, because 1131203320131 - 2¹ = 1131203320129 is a prime.

It is a super-2 number, since 2×1131203320131² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131203320098 and 1131203320107.

It is not an unprimeable number, because it can be changed into a prime (1131203320133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342165111 + ... + 342168416.

It is an arithmetic number, because the mean of its divisors is an integer number (102650029200).

Almost surely, 2^{1131203320131} is an apocalyptic number.

1131203320131 is a deficient number, since it is larger than the sum of its proper divisors (511197147069).

1131203320131 is a wasteful number, since it uses less digits than its factorization.

1131203320131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684333578.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1131203320131 its reverse (1310233021311), we get a palindrome (2441436341442).

The spelling of 1131203320131 in words is "one trillion, one hundred thirty-one billion, two hundred three million, three hundred twenty thousand, one hundred thirty-one".