1423432111 has 2 divisors, whose sum is σ = 1423432112. Its totient is φ = 1423432110.

The previous prime is 1423432099. The next prime is 1423432121. The reversal of 1423432111 is 1112343241.

It is a strong prime.

It is an emirp because it is prime and its reverse (1112343241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1423432111 - 2⁵ = 1423432079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423432121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711716055 + 711716056.

It is an arithmetic number, because the mean of its divisors is an integer number (711716056).

Almost surely, 2^1423432111 is an apocalyptic number.

1423432111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423432111 is an equidigital number, since it uses as much as digits as its factorization.

1423432111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 22.

The square root of 1423432111 is about 37728.3992636846. The cubic root of 1423432111 is about 1124.8956903452.

Adding to 1423432111 its reverse (1112343241), we get a palindrome (2535775352).

The spelling of 1423432111 in words is "one billion, four hundred twenty-three million, four hundred thirty-two thousand, one hundred eleven".