233973309641 has 2 divisors, whose sum is σ = 233973309642. Its totient is φ = 233973309640.

The previous prime is 233973309589. The next prime is 233973309643. The reversal of 233973309641 is 146903379332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120266772025 + 113706537616 = 346795^2 + 337204^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233973309641 is a prime.

Together with 233973309643, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 233973309641.

It is not a weakly prime, because it can be changed into another prime (233973309643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116986654820 + 116986654821.

It is an arithmetic number, because the mean of its divisors is an integer number (116986654821).

Almost surely, 2^233973309641 is an apocalyptic number.

It is an amenable number.

233973309641 is a deficient number, since it is larger than the sum of its proper divisors (1).

233973309641 is an equidigital number, since it uses as much as digits as its factorization.

233973309641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2204496, while the sum is 50.

The spelling of 233973309641 in words is "two hundred thirty-three billion, nine hundred seventy-three million, three hundred nine thousand, six hundred forty-one".