102421020403 has 8 divisors (see below), whose sum is σ = 110305286000. Its totient is φ = 94537572768.

The previous prime is 102421020307. The next prime is 102421020433. The reversal of 102421020403 is 304020124201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102421020403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102421020433) 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 7 ways as a sum of consecutive naturals, for example, 69148 + ... + 457846.

It is an arithmetic number, because the mean of its divisors is an integer number (13788160750).

Almost surely, 2^102421020403 is an apocalyptic number.

102421020403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102421020403 is a deficient number, since it is larger than the sum of its proper divisors (7884265597).

102421020403 is a wasteful number, since it uses less digits than its factorization.

102421020403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408981.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 102421020403 its reverse (304020124201), we get a palindrome (406441144604).

The spelling of 102421020403 in words is "one hundred two billion, four hundred twenty-one million, twenty thousand, four hundred three".