234002304199981 has 2 divisors, whose sum is σ = 234002304199982. Its totient is φ = 234002304199980.

The previous prime is 234002304199967. The next prime is 234002304199987. The reversal of 234002304199981 is 189991403200432.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234000503555625 + 1800644356 = 15297075^2 + 42434^2 .

It is a cyclic number.

It is not a de Polignac number, because 234002304199981 - 2⁵ = 234002304199949 is a prime.

It is a super-2 number, since 2×234002304199981² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234002304199987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117001152099990 + 117001152099991.

It is an arithmetic number, because the mean of its divisors is an integer number (117001152099991).

Almost surely, 2^{234002304199981} is an apocalyptic number.

It is an amenable number.

234002304199981 is a deficient number, since it is larger than the sum of its proper divisors (1).

234002304199981 is an equidigital number, since it uses as much as digits as its factorization.

234002304199981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 234002304199981 in words is "two hundred thirty-four trillion, two billion, three hundred four million, one hundred ninety-nine thousand, nine hundred eighty-one".