11142311131 has 16 divisors (see below), whose sum is σ = 12826888704. Its totient is φ = 9481074624.

The previous prime is 11142311101. The next prime is 11142311161. The reversal of 11142311131 is 13111324111.

It is an interprime number because it is at equal distance from previous prime (11142311101) and next prime (11142311161).

It is not a de Polignac number, because 11142311131 - 2²¹ = 11140213979 is a prime.

It is a super-2 number, since 2×11142311131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11142311099 and 11142311108.

It is not an unprimeable number, because it can be changed into a prime (11142311101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1082250 + ... + 1092496.

It is an arithmetic number, because the mean of its divisors is an integer number (801680544).

Almost surely, 2^11142311131 is an apocalyptic number.

11142311131 is a deficient number, since it is larger than the sum of its proper divisors (1684577573).

11142311131 is a wasteful number, since it uses less digits than its factorization.

11142311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11370.

The product of its digits is 72, while the sum is 19.

Adding to 11142311131 its reverse (13111324111), we get a palindrome (24253635242).

The spelling of 11142311131 in words is "eleven billion, one hundred forty-two million, three hundred eleven thousand, one hundred thirty-one".