101781384703 has 2 divisors, whose sum is σ = 101781384704. Its totient is φ = 101781384702.

The previous prime is 101781384701. The next prime is 101781384763. The reversal of 101781384703 is 307483187101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101781384703 - 2¹ = 101781384701 is a prime.

Together with 101781384701, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 101781384703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101781384701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50890692351 + 50890692352.

It is an arithmetic number, because the mean of its divisors is an integer number (50890692352).

Almost surely, 2^101781384703 is an apocalyptic number.

101781384703 is a deficient number, since it is larger than the sum of its proper divisors (1).

101781384703 is an equidigital number, since it uses as much as digits as its factorization.

101781384703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 101781384703 in words is "one hundred one billion, seven hundred eighty-one million, three hundred eighty-four thousand, seven hundred three".