1110345421 has 4 divisors (see below), whose sum is σ = 1111805244. Its totient is φ = 1108885600.

The previous prime is 1110345377. The next prime is 1110345433. The reversal of 1110345421 is 1245430111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1245430111 = 47 ⋅26498513.

It can be written as a sum of positive squares in 2 ways, for example, as 74149321 + 1036196100 = 8611^2 + 32190^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110345421 - 2¹³ = 1110337229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1110345392 and 1110345401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110345461) 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, 728770 + ... + 730291.

It is an arithmetic number, because the mean of its divisors is an integer number (277951311).

Almost surely, 2^1110345421 is an apocalyptic number.

It is an amenable number.

1110345421 is a deficient number, since it is larger than the sum of its proper divisors (1459823).

1110345421 is an equidigital number, since it uses as much as digits as its factorization.

1110345421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459822.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1110345421 is about 33321.8460022850. The cubic root of 1110345421 is about 1035.5061962587.

Adding to 1110345421 its reverse (1245430111), we get a palindrome (2355775532).

The spelling of 1110345421 in words is "one billion, one hundred ten million, three hundred forty-five thousand, four hundred twenty-one".