231231022133 has 8 divisors (see below), whose sum is σ = 238025312448. Its totient is φ = 224501133024.

The previous prime is 231231022111. The next prime is 231231022157. The reversal of 231231022133 is 331220132132.

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 231231022133 - 2¹⁴ = 231231005749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231231022099 and 231231022108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231231022163) 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, 16093016 + ... + 16107377.

It is an arithmetic number, because the mean of its divisors is an integer number (29753164056).

Almost surely, 2^231231022133 is an apocalyptic number.

It is an amenable number.

231231022133 is a deficient number, since it is larger than the sum of its proper divisors (6794290315).

231231022133 is a wasteful number, since it uses less digits than its factorization.

231231022133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32200603.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 231231022133 its reverse (331220132132), we get a palindrome (562451154265).

The spelling of 231231022133 in words is "two hundred thirty-one billion, two hundred thirty-one million, twenty-two thousand, one hundred thirty-three".