111031421 has 8 divisors (see below), whose sum is σ = 118034400. Its totient is φ = 104144400.

The previous prime is 111031411. The next prime is 111031463. The reversal of 111031421 is 124130111.

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 111031421 - 2¹⁰ = 111030397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111031396 and 111031405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111031411) 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, 27011 + ... + 30848.

It is an arithmetic number, because the mean of its divisors is an integer number (14754300).

Almost surely, 2^111031421 is an apocalyptic number.

It is an amenable number.

111031421 is a deficient number, since it is larger than the sum of its proper divisors (7002979).

111031421 is a wasteful number, since it uses less digits than its factorization.

111031421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57979.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 111031421 is about 10537.1448220094. The cubic root of 111031421 is about 480.6348962526.

Adding to 111031421 its reverse (124130111), we get a palindrome (235161532).

The spelling of 111031421 in words is "one hundred eleven million, thirty-one thousand, four hundred twenty-one".