21231030233110 has 16 divisors (see below), whose sum is σ = 38229517628496. Its totient is φ = 8489375824608.

The previous prime is 21231030233059. The next prime is 21231030233117. The reversal of 21231030233110 is 1133203013212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21231030233117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379504212 + ... + 379560151.

It is an arithmetic number, because the mean of its divisors is an integer number (2389344851781).

Almost surely, 2^{21231030233110} is an apocalyptic number.

21231030233110 is a deficient number, since it is larger than the sum of its proper divisors (16998487395386).

21231030233110 is a wasteful number, since it uses less digits than its factorization.

21231030233110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759067167.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21231030233110 its reverse (1133203013212), we get a palindrome (22364233246322).

The spelling of 21231030233110 in words is "twenty-one trillion, two hundred thirty-one billion, thirty million, two hundred thirty-three thousand, one hundred ten".