11013131 has 2 divisors, whose sum is σ = 11013132. Its totient is φ = 11013130.

The previous prime is 11013097. The next prime is 11013139. The reversal of 11013131 is 13131011.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11013131 - 2²² = 6818827 is a prime.

It is a super-2 number, since 2×11013131² = 242578108846322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11013139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506565 + 5506566.

It is an arithmetic number, because the mean of its divisors is an integer number (5506566).

Almost surely, 2^11013131 is an apocalyptic number.

11013131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11013131 is an equidigital number, since it uses as much as digits as its factorization.

11013131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 11013131 is about 3318.6037726731. The cubic root of 11013131 is about 222.4864680572.

Adding to 11013131 its reverse (13131011), we get a palindrome (24144142).

The spelling of 11013131 in words is "eleven million, thirteen thousand, one hundred thirty-one".