21232101354 has 32 divisors (see below), whose sum is σ = 44249181120. Its totient is φ = 6783434112.

The previous prime is 21232101353. The next prime is 21232101377. The reversal of 21232101354 is 45310123212.

It is not an unprimeable number, because it can be changed into a prime (21232101353) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 421504 + ... + 469179.

It is an arithmetic number, because the mean of its divisors is an integer number (1382786910).

Almost surely, 2^21232101354 is an apocalyptic number.

21232101354 is an abundant number, since it is smaller than the sum of its proper divisors (23017079766).

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

21232101354 is a wasteful number, since it uses less digits than its factorization.

21232101354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890854.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 21232101354 its reverse (45310123212), we get a palindrome (66542224566).

The spelling of 21232101354 in words is "twenty-one billion, two hundred thirty-two million, one hundred one thousand, three hundred fifty-four".