11131133031131 has 4 divisors (see below), whose sum is σ = 11785905562392. Its totient is φ = 10476360499872.

The previous prime is 11131133031103. The next prime is 11131133031163. The reversal of 11131133031131 is 13113033113111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11131133031131 is a prime.

It is a super-2 number, since 2×11131133031131² (a number of 27 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 = 11131133031097 and 11131133031106.

It is not an unprimeable number, because it can be changed into a prime (11131133033131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327386265605 + ... + 327386265638.

It is an arithmetic number, because the mean of its divisors is an integer number (2946476390598).

Almost surely, 2^{11131133031131} is an apocalyptic number.

11131133031131 is a deficient number, since it is larger than the sum of its proper divisors (654772531261).

11131133031131 is an equidigital number, since it uses as much as digits as its factorization.

11131133031131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654772531260.

The product of its (nonzero) digits is 243, while the sum is 23.

Adding to 11131133031131 its reverse (13113033113111), we get a palindrome (24244166144242).

The spelling of 11131133031131 in words is "eleven trillion, one hundred thirty-one billion, one hundred thirty-three million, thirty-one thousand, one hundred thirty-one".