111335140021 has 8 divisors (see below), whose sum is σ = 127250358464. Its totient is φ = 95422471200.

The previous prime is 111335140013. The next prime is 111335140031. The reversal of 111335140021 is 120041533111.

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 111335140021 - 2³ = 111335140013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111335139974 and 111335140001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111335140001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542895 + ... + 719308.

It is an arithmetic number, because the mean of its divisors is an integer number (15906294808).

Almost surely, 2^111335140021 is an apocalyptic number.

It is an amenable number.

111335140021 is a deficient number, since it is larger than the sum of its proper divisors (15915218443).

111335140021 is a wasteful number, since it uses less digits than its factorization.

111335140021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274811.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 111335140021 its reverse (120041533111), we get a palindrome (231376673132).

The spelling of 111335140021 in words is "one hundred eleven billion, three hundred thirty-five million, one hundred forty thousand, twenty-one".