231232031223331 has 8 divisors (see below), whose sum is σ = 236780852402864. Its totient is φ = 225690997865760.

The previous prime is 231232031223293. The next prime is 231232031223373. The reversal of 231232031223331 is 133322130232132.

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 231232031223331 - 2⁷ = 231232031223203 is a prime.

It is a super-2 number, since 2×231232031223331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231232031223293 and 231232031223302.

It is not an unprimeable number, because it can be changed into a prime (231232031223631) 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, 1946895396 + ... + 1947014161.

It is an arithmetic number, because the mean of its divisors is an integer number (29597606550358).

Almost surely, 2^{231232031223331} is an apocalyptic number.

231232031223331 is a deficient number, since it is larger than the sum of its proper divisors (5548821179533).

231232031223331 is a wasteful number, since it uses less digits than its factorization.

231232031223331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893910981.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 231232031223331 its reverse (133322130232132), we get a palindrome (364554161455463).

The spelling of 231232031223331 in words is "two hundred thirty-one trillion, two hundred thirty-two billion, thirty-one million, two hundred twenty-three thousand, three hundred thirty-one".