102401503 has 4 divisors (see below), whose sum is σ = 102434328. Its totient is φ = 102368680.

The previous prime is 102401491. The next prime is 102401513. The reversal of 102401503 is 305104201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305104201 = 31 ⋅9842071.

It is a cyclic number.

It is not a de Polignac number, because 102401503 - 2⁵ = 102401471 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 (102401513) 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, 11176 + ... + 18157.

It is an arithmetic number, because the mean of its divisors is an integer number (25608582).

Almost surely, 2^102401503 is an apocalyptic number.

102401503 is a deficient number, since it is larger than the sum of its proper divisors (32825).

102401503 is an equidigital number, since it uses as much as digits as its factorization.

102401503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32824.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 102401503 is about 10119.3627763807. The cubic root of 102401503 is about 467.8451270605.

Adding to 102401503 its reverse (305104201), we get a palindrome (407505704).

The spelling of 102401503 in words is "one hundred two million, four hundred one thousand, five hundred three".