23443400234 has 4 divisors (see below), whose sum is σ = 35165100354. Its totient is φ = 11721700116.

The previous prime is 23443400191. The next prime is 23443400263. The reversal of 23443400234 is 43200434432.

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

It can be written as a sum of positive squares in only one way, i.e., 15566305225 + 7877095009 = 124765^2 + 88753^2 .

It is a super-2 number, since 2×23443400234² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23443400197 and 23443400206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5860850057 + ... + 5860850060.

Almost surely, 2^23443400234 is an apocalyptic number.

23443400234 is a deficient number, since it is larger than the sum of its proper divisors (11721700120).

23443400234 is a wasteful number, since it uses less digits than its factorization.

23443400234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11721700119.

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 23443400234 its reverse (43200434432), we get a palindrome (66643834666).

The spelling of 23443400234 in words is "twenty-three billion, four hundred forty-three million, four hundred thousand, two hundred thirty-four".