11311004442131 has 4 divisors (see below), whose sum is σ = 11311031953200. Its totient is φ = 11310976931064.

The previous prime is 11311004442121. The next prime is 11311004442161. The reversal of 11311004442131 is 13124440011311.

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-11311004442131 is a prime.

It is a super-2 number, since 2×11311004442131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11311004442131.

It is not an unprimeable number, because it can be changed into a prime (11311004442121) 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, 13129316 + ... + 13964273.

It is an arithmetic number, because the mean of its divisors is an integer number (2827757988300).

Almost surely, 2^{11311004442131} is an apocalyptic number.

11311004442131 is a deficient number, since it is larger than the sum of its proper divisors (27511069).

11311004442131 is an equidigital number, since it uses as much as digits as its factorization.

11311004442131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27511068.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 11311004442131 its reverse (13124440011311), we get a palindrome (24435444453442).

The spelling of 11311004442131 in words is "eleven trillion, three hundred eleven billion, four million, four hundred forty-two thousand, one hundred thirty-one".