102121023223 has 4 divisors (see below), whose sum is σ = 102570895800. Its totient is φ = 101671150648.

The previous prime is 102121023181. The next prime is 102121023233. The reversal of 102121023223 is 322320121201.

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 102121023223 - 2²⁹ = 101584152311 is a prime.

It is a super-2 number, since 2×102121023223² (a number of 23 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 102121023223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121023233) 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 3 ways as a sum of consecutive naturals, for example, 224935948 + ... + 224936401.

It is an arithmetic number, because the mean of its divisors is an integer number (25642723950).

Almost surely, 2^102121023223 is an apocalyptic number.

102121023223 is a deficient number, since it is larger than the sum of its proper divisors (449872577).

102121023223 is an equidigital number, since it uses as much as digits as its factorization.

102121023223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449872576.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102121023223 its reverse (322320121201), we get a palindrome (424441144424).

The spelling of 102121023223 in words is "one hundred two billion, one hundred twenty-one million, twenty-three thousand, two hundred twenty-three".