21314023124 has 12 divisors (see below), whose sum is σ = 37301394900. Its totient is φ = 10656481728.

The previous prime is 21314023099. The next prime is 21314023141. The reversal of 21314023124 is 42132041312.

It can be written as a sum of positive squares in 2 ways, for example, as 10334755600 + 10979267524 = 101660^2 + 104782^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 21314023124.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 33779 + ... + 209210.

It is an arithmetic number, because the mean of its divisors is an integer number (3108449575).

Almost surely, 2^21314023124 is an apocalyptic number.

It is an amenable number.

21314023124 is a deficient number, since it is larger than the sum of its proper divisors (15987371776).

21314023124 is a wasteful number, since it uses less digits than its factorization.

21314023124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264922 (or 264920 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21314023124 its reverse (42132041312), we get a palindrome (63446064436).

The spelling of 21314023124 in words is "twenty-one billion, three hundred fourteen million, twenty-three thousand, one hundred twenty-four".