102501772103 has 4 divisors (see below), whose sum is σ = 102533717280. Its totient is φ = 102469826928.

The previous prime is 102501772091. The next prime is 102501772117. The reversal of 102501772103 is 301277105201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102501772103 - 2¹⁰ = 102501771079 is a prime.

It is a super-2 number, since 2×102501772103² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102501772123) 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 in 3 ways as a sum of consecutive naturals, for example, 15967775 + ... + 15974192.

It is an arithmetic number, because the mean of its divisors is an integer number (25633429320).

Almost surely, 2^102501772103 is an apocalyptic number.

102501772103 is a deficient number, since it is larger than the sum of its proper divisors (31945177).

102501772103 is an equidigital number, since it uses as much as digits as its factorization.

102501772103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31945176.

The product of its (nonzero) digits is 2940, while the sum is 29.

Adding to 102501772103 its reverse (301277105201), we get a palindrome (403778877304).

The spelling of 102501772103 in words is "one hundred two billion, five hundred one million, seven hundred seventy-two thousand, one hundred three".