12132900008261 has 2 divisors, whose sum is σ = 12132900008262. Its totient is φ = 12132900008260.

The previous prime is 12132900008221. The next prime is 12132900008267. The reversal of 12132900008261 is 16280000923121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8291554804036 + 3841345204225 = 2879506^2 + 1959935^2 .

It is a cyclic number.

It is not a de Polignac number, because 12132900008261 - 2¹⁸ = 12132899746117 is a prime.

It is a super-2 number, since 2×12132900008261² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12132900008267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066450004130 + 6066450004131.

It is an arithmetic number, because the mean of its divisors is an integer number (6066450004131).

Almost surely, 2^{12132900008261} is an apocalyptic number.

It is an amenable number.

12132900008261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12132900008261 is an equidigital number, since it uses as much as digits as its factorization.

12132900008261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 12132900008261 in words is "twelve trillion, one hundred thirty-two billion, nine hundred million, eight thousand, two hundred sixty-one".