1234123043 has 4 divisors (see below), whose sum is σ = 1276679040. Its totient is φ = 1191567048.

The previous prime is 1234123013. The next prime is 1234123067. The reversal of 1234123043 is 3403214321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3403214321 = 13 ⋅261785717.

It is a cyclic number.

It is not a de Polignac number, because 1234123043 - 2¹⁶ = 1234057507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1234123013) 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, 21277955 + ... + 21278012.

It is an arithmetic number, because the mean of its divisors is an integer number (319169760).

Almost surely, 2^1234123043 is an apocalyptic number.

1234123043 is a deficient number, since it is larger than the sum of its proper divisors (42555997).

1234123043 is an equidigital number, since it uses as much as digits as its factorization.

1234123043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42555996.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1234123043 is about 35130.0874322852. The cubic root of 1234123043 is about 1072.6371156445.

Adding to 1234123043 its reverse (3403214321), we get a palindrome (4637337364).

The spelling of 1234123043 in words is "one billion, two hundred thirty-four million, one hundred twenty-three thousand, forty-three".