21232131233110 has 64 divisors (see below), whose sum is σ = 45579698583552. Its totient is φ = 6962603003136.

The previous prime is 21232131233101. The next prime is 21232131233111. The reversal of 21232131233110 is 1133213123212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21232131233111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23239767 + ... + 24136093.

It is an arithmetic number, because the mean of its divisors is an integer number (712182790368).

Almost surely, 2^{21232131233110} is an apocalyptic number.

21232131233110 is an abundant number, since it is smaller than the sum of its proper divisors (24347567350442).

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

21232131233110 is a wasteful number, since it uses less digits than its factorization.

21232131233110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911077.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21232131233110 its reverse (1133213123212), we get a palindrome (22365344356322).

The spelling of 21232131233110 in words is "twenty-one trillion, two hundred thirty-two billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred ten".