102120221023 has 8 divisors (see below), whose sum is σ = 105471704448. Its totient is φ = 98813128344.

The previous prime is 102120221009. The next prime is 102120221051. The reversal of 102120221023 is 320122021201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102120221023 - 2⁹ = 102120220511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102120220988 and 102120221006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120281023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11093011 + ... + 11102212.

It is an arithmetic number, because the mean of its divisors is an integer number (13183963056).

Almost surely, 2^102120221023 is an apocalyptic number.

102120221023 is a deficient number, since it is larger than the sum of its proper divisors (3351483425).

102120221023 is a wasteful number, since it uses less digits than its factorization.

102120221023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22195373.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102120221023 its reverse (320122021201), we get a palindrome (422242242224).

The spelling of 102120221023 in words is "one hundred two billion, one hundred twenty million, two hundred twenty-one thousand, twenty-three".