1101113231 has 4 divisors (see below), whose sum is σ = 1101342000. Its totient is φ = 1100884464.

The previous prime is 1101113219. The next prime is 1101113243. The reversal of 1101113231 is 1323111011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1101113219) and next prime (1101113243).

It is a cyclic number.

It is not a de Polignac number, because 1101113231 - 2¹⁴ = 1101096847 is a prime.

It is a super-2 number, since 2×1101113231² = 2424900694966518722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101112231) 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, 107006 + ... + 116843.

It is an arithmetic number, because the mean of its divisors is an integer number (275335500).

Almost surely, 2^1101113231 is an apocalyptic number.

1101113231 is a deficient number, since it is larger than the sum of its proper divisors (228769).

1101113231 is an equidigital number, since it uses as much as digits as its factorization.

1101113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228768.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1101113231 is about 33183.0262483698. The cubic root of 1101113231 is about 1032.6282302382.

Adding to 1101113231 its reverse (1323111011), we get a palindrome (2424224242).

It can be divided in two parts, 11011 and 13231, that multiplied together give a palindrome (145686541).

The spelling of 1101113231 in words is "one billion, one hundred one million, one hundred thirteen thousand, two hundred thirty-one".