430111421 has 4 divisors (see below), whose sum is σ = 441736092. Its totient is φ = 418486752.

The previous prime is 430111387. The next prime is 430111447. The reversal of 430111421 is 124111034.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 152522500 + 277588921 = 12350^2 + 16661^2 .

It is a cyclic number.

It is not a de Polignac number, because 430111421 - 2²⁶ = 363002557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 430111421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430111321) 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, 5812280 + ... + 5812353.

It is an arithmetic number, because the mean of its divisors is an integer number (110434023).

Almost surely, 2^430111421 is an apocalyptic number.

It is an amenable number.

430111421 is a deficient number, since it is larger than the sum of its proper divisors (11624671).

430111421 is a wasteful number, since it uses less digits than its factorization.

430111421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11624670.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 430111421 is about 20739.1277781878. The cubic root of 430111421 is about 754.8494186776.

Adding to 430111421 its reverse (124111034), we get a palindrome (554222455).

The spelling of 430111421 in words is "four hundred thirty million, one hundred eleven thousand, four hundred twenty-one".