21344551132 has 12 divisors (see below), whose sum is σ = 39318910120. Its totient is φ = 10110576816.

The previous prime is 21344551121. The next prime is 21344551141. The reversal of 21344551132 is 23115544312.

It is a junction number, because it is equal to n+sod(n) for n = 21344551094 and 21344551103.

It is a congruent number.

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, 140424603 + ... + 140424754.

Almost surely, 2^21344551132 is an apocalyptic number.

It is an amenable number.

21344551132 is a deficient number, since it is larger than the sum of its proper divisors (17974358988).

21344551132 is a wasteful number, since it uses less digits than its factorization.

21344551132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280849380 (or 280849378 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The spelling of 21344551132 in words is "twenty-one billion, three hundred forty-four million, five hundred fifty-one thousand, one hundred thirty-two".