1123421434 has 8 divisors (see below), whose sum is σ = 1705435200. Its totient is φ = 554943036.

The previous prime is 1123421423. The next prime is 1123421437. The reversal of 1123421434 is 4341243211.

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 = 1123421399 and 1123421408.

It is not an unprimeable number, because it can be changed into a prime (1123421437) 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, 3383634 + ... + 3383965.

It is an arithmetic number, because the mean of its divisors is an integer number (213179400).

Almost surely, 2^1123421434 is an apocalyptic number.

1123421434 is a deficient number, since it is larger than the sum of its proper divisors (582013766).

1123421434 is an equidigital number, since it uses as much as digits as its factorization.

1123421434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6767684.

The product of its digits is 2304, while the sum is 25.

The square root of 1123421434 is about 33517.4795293441. The cubic root of 1123421434 is about 1039.5552320310. Note that the first 3 decimals are identical.

Adding to 1123421434 its reverse (4341243211), we get a palindrome (5464664645).

The spelling of 1123421434 in words is "one billion, one hundred twenty-three million, four hundred twenty-one thousand, four hundred thirty-four".