111001113031 has 4 divisors (see below), whose sum is σ = 111021678000. Its totient is φ = 110980548064.

The previous prime is 111001112969. The next prime is 111001113049. The reversal of 111001113031 is 130311100111.

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

It is a cyclic number.

It is not a de Polignac number, because 111001113031 - 2²¹ = 110999015879 is a prime.

It is a super-2 number, since 2×111001113031² (a number of 23 digits) 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 (111001113631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10274386 + ... + 10285183.

It is an arithmetic number, because the mean of its divisors is an integer number (27755419500).

Almost surely, 2^111001113031 is an apocalyptic number.

111001113031 is a deficient number, since it is larger than the sum of its proper divisors (20564969).

111001113031 is an equidigital number, since it uses as much as digits as its factorization.

111001113031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20564968.

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 111001113031 its reverse (130311100111), we get a palindrome (241312213142).

The spelling of 111001113031 in words is "one hundred eleven billion, one million, one hundred thirteen thousand, thirty-one".