1423204111 has 16 divisors (see below), whose sum is σ = 1644240384. Its totient is φ = 1206634464.

The previous prime is 1423204103. The next prime is 1423204121. The reversal of 1423204111 is 1114023241.

1423204111 = T₇₈ + T₇₉ + ... + T₂₀₄₃.

It is not a de Polignac number, because 1423204111 - 2³ = 1423204103 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 (1423204121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735301 + ... + 737233.

It is an arithmetic number, because the mean of its divisors is an integer number (102765024).

Almost surely, 2^1423204111 is an apocalyptic number.

1423204111 is a deficient number, since it is larger than the sum of its proper divisors (221036273).

1423204111 is a wasteful number, since it uses less digits than its factorization.

1423204111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1423204111 is about 37725.3775461559. The cubic root of 1423204111 is about 1124.8356266184.

Adding to 1423204111 its reverse (1114023241), we get a palindrome (2537227352).

The spelling of 1423204111 in words is "one billion, four hundred twenty-three million, two hundred four thousand, one hundred eleven".