21233131301 has 4 divisors (see below), whose sum is σ = 21471705900. Its totient is φ = 20994556704.

The previous prime is 21233131273. The next prime is 21233131319. The reversal of 21233131301 is 10313133212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6826890625 + 14406240676 = 82625^2 + 120026^2 .

It is a cyclic number.

It is not a de Polignac number, because 21233131301 - 2¹⁰ = 21233130277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233133301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119287166 + ... + 119287343.

It is an arithmetic number, because the mean of its divisors is an integer number (5367926475).

Almost surely, 2^21233131301 is an apocalyptic number.

It is an amenable number.

21233131301 is a deficient number, since it is larger than the sum of its proper divisors (238574599).

21233131301 is an equidigital number, since it uses as much as digits as its factorization.

21233131301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238574598.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21233131301 its reverse (10313133212), we get a palindrome (31546264513).

The spelling of 21233131301 in words is "twenty-one billion, two hundred thirty-three million, one hundred thirty-one thousand, three hundred one".