11126218931 has 2 divisors, whose sum is σ = 11126218932. Its totient is φ = 11126218930.

The previous prime is 11126218907. The next prime is 11126218937. The reversal of 11126218931 is 13981262111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11126218931 - 2¹⁴ = 11126202547 is a prime.

It is a super-2 number, since 2×11126218931² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11126218891 and 11126218900.

It is not a weakly prime, because it can be changed into another prime (11126218937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5563109465 + 5563109466.

It is an arithmetic number, because the mean of its divisors is an integer number (5563109466).

Almost surely, 2^11126218931 is an apocalyptic number.

11126218931 is a deficient number, since it is larger than the sum of its proper divisors (1).

11126218931 is an equidigital number, since it uses as much as digits as its factorization.

11126218931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 35.

The spelling of 11126218931 in words is "eleven billion, one hundred twenty-six million, two hundred eighteen thousand, nine hundred thirty-one".