21232314124 has 24 divisors (see below), whose sum is σ = 42475497120. Its totient is φ = 9097234176.

The previous prime is 21232314113. The next prime is 21232314151. The reversal of 21232314124 is 42141323212.

It is a super-2 number, since 2×21232314124² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 16644 + ... + 206740.

It is an arithmetic number, because the mean of its divisors is an integer number (1769812380).

Almost surely, 2^21232314124 is an apocalyptic number.

It is an amenable number.

21232314124 is an abundant number, since it is smaller than the sum of its proper divisors (21243182996).

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

21232314124 is a wasteful number, since it uses less digits than its factorization.

21232314124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194097 (or 194095 counting only the distinct ones).

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

Adding to 21232314124 its reverse (42141323212), we get a palindrome (63373637336).

The spelling of 21232314124 in words is "twenty-one billion, two hundred thirty-two million, three hundred fourteen thousand, one hundred twenty-four".