111113420331 has 4 divisors (see below), whose sum is σ = 148151227112. Its totient is φ = 74075613552.

The previous prime is 111113420309. The next prime is 111113420347. The reversal of 111113420331 is 133024311111.

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

It is not a de Polignac number, because 111113420331 - 2³³ = 102523485739 is a prime.

It is a super-2 number, since 2×111113420331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111113420298 and 111113420307.

It is not an unprimeable number, because it can be changed into a prime (111113420381) 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, 18518903386 + ... + 18518903391.

It is an arithmetic number, because the mean of its divisors is an integer number (37037806778).

Almost surely, 2^111113420331 is an apocalyptic number.

111113420331 is a deficient number, since it is larger than the sum of its proper divisors (37037806781).

111113420331 is an equidigital number, since it uses as much as digits as its factorization.

111113420331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37037806780.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 111113420331 its reverse (133024311111), we get a palindrome (244137731442).

The spelling of 111113420331 in words is "one hundred eleven billion, one hundred thirteen million, four hundred twenty thousand, three hundred thirty-one".