21233210020231 has 8 divisors (see below), whose sum is σ = 23182318672128. Its totient is φ = 19287237507000.

The previous prime is 21233210020129. The next prime is 21233210020237. The reversal of 21233210020231 is 13202001233212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21233210020231 - 2²³ = 21233201631623 is a prime.

It is a super-2 number, since 2×21233210020231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233210020237) 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, 784020505 + ... + 784047586.

It is an arithmetic number, because the mean of its divisors is an integer number (2897789834016).

Almost surely, 2^{21233210020231} is an apocalyptic number.

21233210020231 is a deficient number, since it is larger than the sum of its proper divisors (1949108651897).

21233210020231 is a wasteful number, since it uses less digits than its factorization.

21233210020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568069333.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21233210020231 its reverse (13202001233212), we get a palindrome (34435211253443).

The spelling of 21233210020231 in words is "twenty-one trillion, two hundred thirty-three billion, two hundred ten million, twenty thousand, two hundred thirty-one".