102110221123 has 2 divisors, whose sum is σ = 102110221124. Its totient is φ = 102110221122.

The previous prime is 102110221099. The next prime is 102110221127. The reversal of 102110221123 is 321122011201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102110221123 - 2¹³ = 102110212931 is a prime.

It is a super-2 number, since 2×102110221123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102110221097 and 102110221106.

It is not a weakly prime, because it can be changed into another prime (102110221127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055110561 + 51055110562.

It is an arithmetic number, because the mean of its divisors is an integer number (51055110562).

Almost surely, 2^102110221123 is an apocalyptic number.

102110221123 is a deficient number, since it is larger than the sum of its proper divisors (1).

102110221123 is an equidigital number, since it uses as much as digits as its factorization.

102110221123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 102110221123 its reverse (321122011201), we get a palindrome (423232232324).

The spelling of 102110221123 in words is "one hundred two billion, one hundred ten million, two hundred twenty-one thousand, one hundred twenty-three".