102140015287 has 2 divisors, whose sum is σ = 102140015288. Its totient is φ = 102140015286.

The previous prime is 102140015273. The next prime is 102140015431. The reversal of 102140015287 is 782510041201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102140015287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102140015207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51070007643 + 51070007644.

It is an arithmetic number, because the mean of its divisors is an integer number (51070007644).

Almost surely, 2^102140015287 is an apocalyptic number.

102140015287 is a deficient number, since it is larger than the sum of its proper divisors (1).

102140015287 is an equidigital number, since it uses as much as digits as its factorization.

102140015287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 31.

Adding to 102140015287 its reverse (782510041201), we get a palindrome (884650056488).

The spelling of 102140015287 in words is "one hundred two billion, one hundred forty million, fifteen thousand, two hundred eighty-seven".