102102201111123 has 36 divisors (see below), whose sum is σ = 147997146292632. Its totient is φ = 67830716977920.

The previous prime is 102102201111121. The next prime is 102102201111133. The reversal of 102102201111123 is 321111102201201.

It is a happy number.

102102201111123 is a `hidden beast` number, since 1 + 0 + 210 + 220 + 1 + 111 + 123 = 666.

It is not a de Polignac number, because 102102201111123 - 2¹ = 102102201111121 is a prime.

It is a super-2 number, since 2×102102201111123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102102201111096 and 102102201111105.

It is not an unprimeable number, because it can be changed into a prime (102102201111121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3379621488 + ... + 3379651698.

It is an arithmetic number, because the mean of its divisors is an integer number (4111031841462).

Almost surely, 2^{102102201111123} is an apocalyptic number.

102102201111123 is a deficient number, since it is larger than the sum of its proper divisors (45894945181509).

102102201111123 is an equidigital number, since it uses as much as digits as its factorization.

102102201111123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34676 (or 34360 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 102102201111123 its reverse (321111102201201), we get a palindrome (423213303312324).

The spelling of 102102201111123 in words is "one hundred two trillion, one hundred two billion, two hundred one million, one hundred eleven thousand, one hundred twenty-three".