1111000421 has 4 divisors (see below), whose sum is σ = 1111231200. Its totient is φ = 1110769644.

The previous prime is 1111000409. The next prime is 1111000453. The reversal of 1111000421 is 1240001111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1111000421 - 2²² = 1106806117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111000481) 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, 108011 + ... + 117848.

It is an arithmetic number, because the mean of its divisors is an integer number (277807800).

Almost surely, 2^1111000421 is an apocalyptic number.

It is an amenable number.

1111000421 is a deficient number, since it is larger than the sum of its proper divisors (230779).

1111000421 is an equidigital number, since it uses as much as digits as its factorization.

1111000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230778.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1111000421 is about 33331.6729403131. The cubic root of 1111000421 is about 1035.7097735180.

Adding to 1111000421 its reverse (1240001111), we get a palindrome (2351001532).

The spelling of 1111000421 in words is "one billion, one hundred eleven million, four hundred twenty-one", and thus it is an aban number.