233121021347 has 2 divisors, whose sum is σ = 233121021348. Its totient is φ = 233121021346.

The previous prime is 233121021323. The next prime is 233121021349. The reversal of 233121021347 is 743120121332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 233121021347 - 2¹² = 233121017251 is a prime.

Together with 233121021349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (233121021349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116560510673 + 116560510674.

It is an arithmetic number, because the mean of its divisors is an integer number (116560510674).

Almost surely, 2^233121021347 is an apocalyptic number.

233121021347 is a deficient number, since it is larger than the sum of its proper divisors (1).

233121021347 is an equidigital number, since it uses as much as digits as its factorization.

233121021347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 233121021347 its reverse (743120121332), we get a palindrome (976241142679).

The spelling of 233121021347 in words is "two hundred thirty-three billion, one hundred twenty-one million, twenty-one thousand, three hundred forty-seven".