21031120323010 has 16 divisors (see below), whose sum is σ = 43264018950336. Its totient is φ = 7210669825008.

The previous prime is 21031120322987. The next prime is 21031120323029. The reversal of 21031120323010 is 1032302113012.

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, 150222287952 + ... + 150222288091.

It is an arithmetic number, because the mean of its divisors is an integer number (2704001184396).

Almost surely, 2^{21031120323010} is an apocalyptic number.

21031120323010 is an abundant number, since it is smaller than the sum of its proper divisors (22232898627326).

21031120323010 is a wasteful number, since it uses less digits than its factorization.

21031120323010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300444576057.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21031120323010 its reverse (1032302113012), we get a palindrome (22063422436022).

The spelling of 21031120323010 in words is "twenty-one trillion, thirty-one billion, one hundred twenty million, three hundred twenty-three thousand, ten".