233232021161 has 2 divisors, whose sum is σ = 233232021162. Its totient is φ = 233232021160.

The previous prime is 233232021107. The next prime is 233232021221. The reversal of 233232021161 is 161120232332.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167154234025 + 66077787136 = 408845^2 + 257056^2 .

It is a cyclic number.

It is not a de Polignac number, because 233232021161 - 2²² = 233227826857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 233232021161.

It is not a weakly prime, because it can be changed into another prime (233232051161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116616010580 + 116616010581.

It is an arithmetic number, because the mean of its divisors is an integer number (116616010581).

Almost surely, 2^233232021161 is an apocalyptic number.

It is an amenable number.

233232021161 is a deficient number, since it is larger than the sum of its proper divisors (1).

233232021161 is an equidigital number, since it uses as much as digits as its factorization.

233232021161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 233232021161 its reverse (161120232332), we get a palindrome (394352253493).

The spelling of 233232021161 in words is "two hundred thirty-three billion, two hundred thirty-two million, twenty-one thousand, one hundred sixty-one".