111361421 has 8 divisors (see below), whose sum is σ = 115668000. Its totient is φ = 107086000.

The previous prime is 111361399. The next prime is 111361447. The reversal of 111361421 is 124163111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 111361421 - 2¹⁰ = 111360397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111361393 and 111361402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111369421) 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, 371 + ... + 14928.

It is an arithmetic number, because the mean of its divisors is an integer number (14458500).

Almost surely, 2^111361421 is an apocalyptic number.

It is an amenable number.

111361421 is a deficient number, since it is larger than the sum of its proper divisors (4306579).

111361421 is a wasteful number, since it uses less digits than its factorization.

111361421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15579.

The product of its digits is 144, while the sum is 20.

The square root of 111361421 is about 10552.7920949860. The cubic root of 111361421 is about 481.1105953450.

The spelling of 111361421 in words is "one hundred eleven million, three hundred sixty-one thousand, four hundred twenty-one".