21113032034 has 4 divisors (see below), whose sum is σ = 31669548054. Its totient is φ = 10556516016.

The previous prime is 21113031911. The next prime is 21113032049. The reversal of 21113032034 is 43023031112.

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., 21112961809 + 70225 = 145303^2 + 265^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21113031997 and 21113032015.

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, 5278258007 + ... + 5278258010.

Almost surely, 2^21113032034 is an apocalyptic number.

21113032034 is a deficient number, since it is larger than the sum of its proper divisors (10556516020).

21113032034 is a wasteful number, since it uses less digits than its factorization.

21113032034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556516019.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21113032034 its reverse (43023031112), we get a palindrome (64136063146).

The spelling of 21113032034 in words is "twenty-one billion, one hundred thirteen million, thirty-two thousand, thirty-four".