102131333142247 has 2 divisors, whose sum is σ = 102131333142248. Its totient is φ = 102131333142246.

The previous prime is 102131333142233. The next prime is 102131333142277. The reversal of 102131333142247 is 742241333131201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102131333142247 - 2³⁹ = 101581577328359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102131333142277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51065666571123 + 51065666571124.

It is an arithmetic number, because the mean of its divisors is an integer number (51065666571124).

Almost surely, 2^{102131333142247} is an apocalyptic number.

102131333142247 is a deficient number, since it is larger than the sum of its proper divisors (1).

102131333142247 is an equidigital number, since it uses as much as digits as its factorization.

102131333142247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 37.

Adding to 102131333142247 its reverse (742241333131201), we get a palindrome (844372666273448).

The spelling of 102131333142247 in words is "one hundred two trillion, one hundred thirty-one billion, three hundred thirty-three million, one hundred forty-two thousand, two hundred forty-seven".