231233221223331 has 8 divisors (see below), whose sum is σ = 308518858441920. Its totient is φ = 154051532410152.

The previous prime is 231233221223327. The next prime is 231233221223371. The reversal of 231233221223331 is 133322122332132.

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

It is not a de Polignac number, because 231233221223331 - 2² = 231233221223327 is a prime.

It is a super-2 number, since 2×231233221223331² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231233221223292 and 231233221223301.

It is not an unprimeable number, because it can be changed into a prime (231233221223371) 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, 25987096161 + ... + 25987105058.

It is an arithmetic number, because the mean of its divisors is an integer number (38564857305240).

Almost surely, 2^{231233221223331} is an apocalyptic number.

231233221223331 is a deficient number, since it is larger than the sum of its proper divisors (77285637218589).

231233221223331 is a wasteful number, since it uses less digits than its factorization.

231233221223331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51974202705.

The product of its digits is 46656, while the sum is 33.

Adding to 231233221223331 its reverse (133322122332132), we get a palindrome (364555343555463).

The spelling of 231233221223331 in words is "two hundred thirty-one trillion, two hundred thirty-three billion, two hundred twenty-one million, two hundred twenty-three thousand, three hundred thirty-one".