233321401961 has 2 divisors, whose sum is σ = 233321401962. Its totient is φ = 233321401960.

The previous prime is 233321401949. The next prime is 233321402021. The reversal of 233321401961 is 169104123332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231679531561 + 1641870400 = 481331^2 + 40520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233321401961 is a prime.

It is a super-2 number, since 2×233321401961² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (233321404961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116660700980 + 116660700981.

It is an arithmetic number, because the mean of its divisors is an integer number (116660700981).

Almost surely, 2^233321401961 is an apocalyptic number.

It is an amenable number.

233321401961 is a deficient number, since it is larger than the sum of its proper divisors (1).

233321401961 is an equidigital number, since it uses as much as digits as its factorization.

233321401961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 233321401961 in words is "two hundred thirty-three billion, three hundred twenty-one million, four hundred one thousand, nine hundred sixty-one".