11423423434 has 8 divisors (see below), whose sum is σ = 17198365248. Its totient is φ = 5690635020.

The previous prime is 11423423413. The next prime is 11423423443. The reversal of 11423423434 is 43432432411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11423423396 and 11423423405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10537672 + ... + 10538755.

It is an arithmetic number, because the mean of its divisors is an integer number (2149795656).

Almost surely, 2^11423423434 is an apocalyptic number.

11423423434 is a deficient number, since it is larger than the sum of its proper divisors (5774941814).

11423423434 is a wasteful number, since it uses less digits than its factorization.

11423423434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21076700.

The product of its digits is 27648, while the sum is 31.

Adding to 11423423434 its reverse (43432432411), we get a palindrome (54855855845).

The spelling of 11423423434 in words is "eleven billion, four hundred twenty-three million, four hundred twenty-three thousand, four hundred thirty-four".