1131011 has 4 divisors (see below), whose sum is σ = 1292592. Its totient is φ = 969432.

The previous prime is 1130981. The next prime is 1131023. The reversal of 1131011 is 1101311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1101311 = 17 ⋅64783.

It is a cyclic number.

It is not a de Polignac number, because 1131011 - 2⁶ = 1130947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1131011.

It is not an unprimeable number, because it can be changed into a prime (1130011) 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, 80780 + ... + 80793.

It is an arithmetic number, because the mean of its divisors is an integer number (323148).

2^1131011 is an apocalyptic number.

1131011 is a deficient number, since it is larger than the sum of its proper divisors (161581).

1131011 is an equidigital number, since it uses as much as digits as its factorization.

1131011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161580.

The product of its (nonzero) digits is 3, while the sum is 8.

The square root of 1131011 is about 1063.4900093560. The cubic root of 1131011 is about 104.1890975339.

Adding to 1131011 its reverse (1101311), we get a palindrome (2232322).

The spelling of 1131011 in words is "one million, one hundred thirty-one thousand, eleven".