21133103434 has 8 divisors (see below), whose sum is σ = 32722224768. Its totient is φ = 10225695180.

The previous prime is 21133103417. The next prime is 21133103443. The reversal of 21133103434 is 43430133112.

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 = 21133103399 and 21133103408.

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, 170428192 + ... + 170428315.

It is an arithmetic number, because the mean of its divisors is an integer number (4090278096).

Almost surely, 2^21133103434 is an apocalyptic number.

21133103434 is a deficient number, since it is larger than the sum of its proper divisors (11589121334).

21133103434 is a wasteful number, since it uses less digits than its factorization.

21133103434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340856540.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21133103434 its reverse (43430133112), we get a palindrome (64563236546).

The spelling of 21133103434 in words is "twenty-one billion, one hundred thirty-three million, one hundred three thousand, four hundred thirty-four".