2132231112181 has 2 divisors, whose sum is σ = 2132231112182. Its totient is φ = 2132231112180.

The previous prime is 2132231112103. The next prime is 2132231112251. The reversal of 2132231112181 is 1812111322312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2027394385956 + 104836726225 = 1423866^2 + 323785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2132231112181 is a prime.

It is a super-2 number, since 2×2132231112181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2132231512181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066115556090 + 1066115556091.

It is an arithmetic number, because the mean of its divisors is an integer number (1066115556091).

Almost surely, 2^{2132231112181} is an apocalyptic number.

It is an amenable number.

2132231112181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132231112181 is an equidigital number, since it uses as much as digits as its factorization.

2132231112181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 28.

Adding to 2132231112181 its reverse (1812111322312), we get a palindrome (3944342434493).

The spelling of 2132231112181 in words is "two trillion, one hundred thirty-two billion, two hundred thirty-one million, one hundred twelve thousand, one hundred eighty-one".