21024412134 has 32 divisors (see below), whose sum is σ = 46623444480. Its totient is φ = 6266589600.

The previous prime is 21024412111. The next prime is 21024412177. The reversal of 21024412134 is 43121442012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2607054 + ... + 2615105.

It is an arithmetic number, because the mean of its divisors is an integer number (1456982640).

Almost surely, 2^21024412134 is an apocalyptic number.

21024412134 is an abundant number, since it is smaller than the sum of its proper divisors (25599032346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21024412134 is a wasteful number, since it uses less digits than its factorization.

21024412134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5222236.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21024412134 its reverse (43121442012), we get a palindrome (64145854146).

The spelling of 21024412134 in words is "twenty-one billion, twenty-four million, four hundred twelve thousand, one hundred thirty-four".