102303320021 has 16 divisors (see below), whose sum is σ = 118589834880. Its totient is φ = 86442914880.

The previous prime is 102303319991. The next prime is 102303320023. The reversal of 102303320021 is 120023303201.

It is not a de Polignac number, because 102303320021 - 2⁶ = 102303319957 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 (102303320023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189995 + ... + 490616.

It is an arithmetic number, because the mean of its divisors is an integer number (7411864680).

Almost surely, 2^102303320021 is an apocalyptic number.

It is an amenable number.

102303320021 is a deficient number, since it is larger than the sum of its proper divisors (16286514859).

102303320021 is a wasteful number, since it uses less digits than its factorization.

102303320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680924.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 102303320021 its reverse (120023303201), we get a palindrome (222326623222).

The spelling of 102303320021 in words is "one hundred two billion, three hundred three million, three hundred twenty thousand, twenty-one".