201034302181 has 2 divisors, whose sum is σ = 201034302182. Its totient is φ = 201034302180.

The previous prime is 201034302089. The next prime is 201034302229. The reversal of 201034302181 is 181203430102.

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., 161097876900 + 39936425281 = 401370^2 + 199841^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201034302181 is a prime.

It is a super-2 number, since 2×201034302181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201034309181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100517151090 + 100517151091.

It is an arithmetic number, because the mean of its divisors is an integer number (100517151091).

Almost surely, 2^201034302181 is an apocalyptic number.

It is an amenable number.

201034302181 is a deficient number, since it is larger than the sum of its proper divisors (1).

201034302181 is an equidigital number, since it uses as much as digits as its factorization.

201034302181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 201034302181 its reverse (181203430102), we get a palindrome (382237732283).

The spelling of 201034302181 in words is "two hundred one billion, thirty-four million, three hundred two thousand, one hundred eighty-one".