21032412434 has 8 divisors (see below), whose sum is σ = 34416674928. Its totient is φ = 9560187460.

The previous prime is 21032412433. The next prime is 21032412503. The reversal of 21032412434 is 43421423012.

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

It is not an unprimeable number, because it can be changed into a prime (21032412433) 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, 478009352 + ... + 478009395.

It is an arithmetic number, because the mean of its divisors is an integer number (4302084366).

Almost surely, 2^21032412434 is an apocalyptic number.

21032412434 is a deficient number, since it is larger than the sum of its proper divisors (13384262494).

21032412434 is a wasteful number, since it uses less digits than its factorization.

21032412434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956018760.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 21032412434 its reverse (43421423012), we get a palindrome (64453835446).

The spelling of 21032412434 in words is "twenty-one billion, thirty-two million, four hundred twelve thousand, four hundred thirty-four".