102303121221023 has 4 divisors (see below), whose sum is σ = 103241681966280. Its totient is φ = 101364560475768.

The previous prime is 102303121221017. The next prime is 102303121221031. The reversal of 102303121221023 is 320122121303201.

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 102303121221023 - 2⁶ = 102303121220959 is a prime.

It is a super-2 number, since 2×102303121221023² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102303121221023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102303121221053) 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, 469280372465 + ... + 469280372682.

It is an arithmetic number, because the mean of its divisors is an integer number (25810420491570).

Almost surely, 2^{102303121221023} is an apocalyptic number.

102303121221023 is a deficient number, since it is larger than the sum of its proper divisors (938560745257).

102303121221023 is an equidigital number, since it uses as much as digits as its factorization.

102303121221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938560745256.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 102303121221023 its reverse (320122121303201), we get a palindrome (422425242524224).

The spelling of 102303121221023 in words is "one hundred two trillion, three hundred three billion, one hundred twenty-one million, two hundred twenty-one thousand, twenty-three".