231032230133 has 8 divisors (see below), whose sum is σ = 241847331648. Its totient is φ = 220281313824.

The previous prime is 231032230129. The next prime is 231032230157. The reversal of 231032230133 is 331032230132.

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 231032230133 - 2² = 231032230129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 231032230099 and 231032230108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231032230333) 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, 16038935 + ... + 16053332.

It is an arithmetic number, because the mean of its divisors is an integer number (30230916456).

Almost surely, 2^231032230133 is an apocalyptic number.

231032230133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

231032230133 is a deficient number, since it is larger than the sum of its proper divisors (10815101515).

231032230133 is a wasteful number, since it uses less digits than its factorization.

231032230133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32092603.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 231032230133 its reverse (331032230132), we get a palindrome (562064460265).

Subtracting 231032230133 from its reverse (331032230132), we obtain a palindrome (99999999999).

The spelling of 231032230133 in words is "two hundred thirty-one billion, thirty-two million, two hundred thirty thousand, one hundred thirty-three".