123102202111 has 24 divisors (see below), whose sum is σ = 157291217280. Its totient is φ = 95616469872.

The previous prime is 123102202037. The next prime is 123102202123. The reversal of 123102202111 is 111202201321.

It is not a de Polignac number, because 123102202111 - 2¹³ = 123102193919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123102202151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2853061 + ... + 2895886.

It is an arithmetic number, because the mean of its divisors is an integer number (6553800720).

Almost surely, 2^123102202111 is an apocalyptic number.

123102202111 is a deficient number, since it is larger than the sum of its proper divisors (34189015169).

123102202111 is a wasteful number, since it uses less digits than its factorization.

123102202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5749003 (or 5748996 counting only the distinct ones).

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

Adding to 123102202111 its reverse (111202201321), we get a palindrome (234304403432).

The spelling of 123102202111 in words is "one hundred twenty-three billion, one hundred two million, two hundred two thousand, one hundred eleven".