102861619141 has 2 divisors, whose sum is σ = 102861619142. Its totient is φ = 102861619140.

The previous prime is 102861619121. The next prime is 102861619171. The reversal of 102861619141 is 141916168201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82409759041 + 20451860100 = 287071^2 + 143010^2 .

It is a cyclic number.

It is not a de Polignac number, because 102861619141 - 2¹¹ = 102861617093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102861619094 and 102861619103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102861619121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51430809570 + 51430809571.

It is an arithmetic number, because the mean of its divisors is an integer number (51430809571).

Almost surely, 2^102861619141 is an apocalyptic number.

It is an amenable number.

102861619141 is a deficient number, since it is larger than the sum of its proper divisors (1).

102861619141 is an equidigital number, since it uses as much as digits as its factorization.

102861619141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 40.

The spelling of 102861619141 in words is "one hundred two billion, eight hundred sixty-one million, six hundred nineteen thousand, one hundred forty-one".