123203031102 has 32 divisors (see below), whose sum is σ = 288194227200. Its totient is φ = 38906220024.

The previous prime is 123203031097. The next prime is 123203031113. The reversal of 123203031102 is 201130302321.

123203031102 is a `hidden beast` number, since 1 + 2 + 320 + 30 + 311 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60039438 + ... + 60041489.

It is an arithmetic number, because the mean of its divisors is an integer number (9006069600).

Almost surely, 2^123203031102 is an apocalyptic number.

123203031102 is an abundant number, since it is smaller than the sum of its proper divisors (164991196098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123203031102 is a wasteful number, since it uses less digits than its factorization.

123203031102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120080957 (or 120080951 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 123203031102 its reverse (201130302321), we get a palindrome (324333333423).

The spelling of 123203031102 in words is "one hundred twenty-three billion, two hundred three million, thirty-one thousand, one hundred two".