21323311231010 has 16 divisors (see below), whose sum is σ = 38382149071872. Its totient is φ = 8529282524400.

The previous prime is 21323311230913. The next prime is 21323311231043. The reversal of 21323311231010 is 1013211332312.

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, 3069026 + ... + 7215645.

It is an arithmetic number, because the mean of its divisors is an integer number (2398884316992).

Almost surely, 2^{21323311231010} is an apocalyptic number.

21323311231010 is a deficient number, since it is larger than the sum of its proper divisors (17058837840862).

21323311231010 is a wasteful number, since it uses less digits than its factorization.

21323311231010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10492009.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 21323311231010 its reverse (1013211332312), we get a palindrome (22336522563322).

The spelling of 21323311231010 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred eleven million, two hundred thirty-one thousand, ten".