2313233232181 has 2 divisors, whose sum is σ = 2313233232182. Its totient is φ = 2313233232180.

The previous prime is 2313233232169. The next prime is 2313233232251. The reversal of 2313233232181 is 1812323323132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2279091431556 + 34141800625 = 1509666^2 + 184775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2313233232181 is a prime.

It is a super-2 number, since 2×2313233232181² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2313233232131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156616616090 + 1156616616091.

It is an arithmetic number, because the mean of its divisors is an integer number (1156616616091).

Almost surely, 2^{2313233232181} is an apocalyptic number.

It is an amenable number.

2313233232181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2313233232181 is an equidigital number, since it uses as much as digits as its factorization.

2313233232181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 34.

The spelling of 2313233232181 in words is "two trillion, three hundred thirteen billion, two hundred thirty-three million, two hundred thirty-two thousand, one hundred eighty-one".