21106147324 has 6 divisors (see below), whose sum is σ = 36935757824. Its totient is φ = 10553073660.

The previous prime is 21106147319. The next prime is 21106147339. The reversal of 21106147324 is 42374160112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2638268412 + ... + 2638268419.

Almost surely, 2^21106147324 is an apocalyptic number.

It is an amenable number.

21106147324 is a deficient number, since it is larger than the sum of its proper divisors (15829610500).

21106147324 is a wasteful number, since it uses less digits than its factorization.

21106147324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5276536835 (or 5276536833 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 21106147324 in words is "twenty-one billion, one hundred six million, one hundred forty-seven thousand, three hundred twenty-four".