21424031134 has 32 divisors (see below), whose sum is σ = 36943977600. Its totient is φ = 9215324640.

The previous prime is 21424031117. The next prime is 21424031141. The reversal of 21424031134 is 43113042412.

It is a super-2 number, since 2×21424031134² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21424031099 and 21424031108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350872 + ... + 407380.

It is an arithmetic number, because the mean of its divisors is an integer number (1154499300).

Almost surely, 2^21424031134 is an apocalyptic number.

21424031134 is a deficient number, since it is larger than the sum of its proper divisors (15519946466).

21424031134 is a wasteful number, since it uses less digits than its factorization.

21424031134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57448.

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

Adding to 21424031134 its reverse (43113042412), we get a palindrome (64537073546).

The spelling of 21424031134 in words is "twenty-one billion, four hundred twenty-four million, thirty-one thousand, one hundred thirty-four".