1101243 has 32 divisors (see below), whose sum is σ = 1838592. Its totient is φ = 576000.

The previous prime is 1101229. The next prime is 1101253. The reversal of 1101243 is 3421011.

It is a happy number.

It is not a de Polignac number, because 1101243 - 2⁵ = 1101211 is a prime.

It is a super-2 number, since 2×1101243² = 2425472290098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1101253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7218 + ... + 7368.

It is an arithmetic number, because the mean of its divisors is an integer number (57456).

2^1101243 is an apocalyptic number.

1101243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1101243 is a deficient number, since it is larger than the sum of its proper divisors (737349).

1101243 is a wasteful number, since it uses less digits than its factorization.

1101243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1101243 is about 1049.4012578609. The cubic root of 1101243 is about 103.2668794601.

Adding to 1101243 its reverse (3421011), we get a palindrome (4522254).

The spelling of 1101243 in words is "one million, one hundred one thousand, two hundred forty-three".