102521043103 has 4 divisors (see below), whose sum is σ = 102870944568. Its totient is φ = 102171141640.

The previous prime is 102521043101. The next prime is 102521043167. The reversal of 102521043103 is 301340125201.

It is a happy number.

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 102521043103 - 2¹ = 102521043101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102521043101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174950293 + ... + 174950878.

It is an arithmetic number, because the mean of its divisors is an integer number (25717736142).

Almost surely, 2^102521043103 is an apocalyptic number.

102521043103 is a deficient number, since it is larger than the sum of its proper divisors (349901465).

102521043103 is an equidigital number, since it uses as much as digits as its factorization.

102521043103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349901464.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 102521043103 its reverse (301340125201), we get a palindrome (403861168304).

The spelling of 102521043103 in words is "one hundred two billion, five hundred twenty-one million, forty-three thousand, one hundred three".