11102312031 has 8 divisors (see below), whose sum is σ = 14969409840. Its totient is φ = 7318377792.

The previous prime is 11102312027. The next prime is 11102312033. The reversal of 11102312031 is 13021320111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11102312031 - 2² = 11102312027 is a prime.

It is a super-2 number, since 2×11102312031² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11102312031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102312033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20790580 + ... + 20791113.

It is an arithmetic number, because the mean of its divisors is an integer number (1871176230).

Almost surely, 2^11102312031 is an apocalyptic number.

11102312031 is a deficient number, since it is larger than the sum of its proper divisors (3867097809).

11102312031 is an equidigital number, since it uses as much as digits as its factorization.

11102312031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41581785.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11102312031 its reverse (13021320111), we get a palindrome (24123632142).

The spelling of 11102312031 in words is "eleven billion, one hundred two million, three hundred twelve thousand, thirty-one".