102412323431261 has 2 divisors, whose sum is σ = 102412323431262. Its totient is φ = 102412323431260.

The previous prime is 102412323431153. The next prime is 102412323431281. The reversal of 102412323431261 is 162134323214201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70075415663236 + 32336907768025 = 8371106^2 + 5686555^2 .

It is a cyclic number.

It is not a de Polignac number, because 102412323431261 - 2⁴⁶ = 32043579253597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102412323431281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51206161715630 + 51206161715631.

It is an arithmetic number, because the mean of its divisors is an integer number (51206161715631).

Almost surely, 2^{102412323431261} is an apocalyptic number.

It is an amenable number.

102412323431261 is a deficient number, since it is larger than the sum of its proper divisors (1).

102412323431261 is an equidigital number, since it uses as much as digits as its factorization.

102412323431261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

Adding to 102412323431261 its reverse (162134323214201), we get a palindrome (264546646645462).

The spelling of 102412323431261 in words is "one hundred two trillion, four hundred twelve billion, three hundred twenty-three million, four hundred thirty-one thousand, two hundred sixty-one".