102030021323 has 4 divisors (see below), whose sum is σ = 102048875808. Its totient is φ = 102011166840.

The previous prime is 102030021221. The next prime is 102030021349. The reversal of 102030021323 is 323120030201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102030021323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102030021623) 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, 9419123 + ... + 9429948.

It is an arithmetic number, because the mean of its divisors is an integer number (25512218952).

Almost surely, 2^102030021323 is an apocalyptic number.

102030021323 is a deficient number, since it is larger than the sum of its proper divisors (18854485).

102030021323 is an equidigital number, since it uses as much as digits as its factorization.

102030021323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18854484.

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

Adding to 102030021323 its reverse (323120030201), we get a palindrome (425150051524).

The spelling of 102030021323 in words is "one hundred two billion, thirty million, twenty-one thousand, three hundred twenty-three".