111001313131 has 4 divisors (see below), whose sum is σ = 111811541832. Its totient is φ = 110191084432.

The previous prime is 111001313047. The next prime is 111001313161. The reversal of 111001313131 is 131313100111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131313100111 = 761 ⋅172553351.

It is a cyclic number.

It is not a de Polignac number, because 111001313131 - 2⁹ = 111001312619 is a prime.

It is a super-2 number, since 2×111001313131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111001313161) 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, 405114145 + ... + 405114418.

It is an arithmetic number, because the mean of its divisors is an integer number (27952885458).

Almost surely, 2^111001313131 is an apocalyptic number.

111001313131 is a deficient number, since it is larger than the sum of its proper divisors (810228701).

111001313131 is an equidigital number, since it uses as much as digits as its factorization.

111001313131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810228700.

The product of its (nonzero) digits is 27, while the sum is 16.

Adding to 111001313131 its reverse (131313100111), we get a palindrome (242314413242).

It can be divided in two parts, 11100 and 1313131, that added together give a palindrome (1324231).

The spelling of 111001313131 in words is "one hundred eleven billion, one million, three hundred thirteen thousand, one hundred thirty-one".