123102110100 has 72 divisors (see below), whose sum is σ = 356410625760. Its totient is φ = 32805553280.

The previous prime is 123102110093. The next prime is 123102110123. The reversal of 123102110100 is 1011201321.

It is a super-2 number, since 2×123102110100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322186 + ... + 591614.

It is an arithmetic number, because the mean of its divisors is an integer number (4950147580).

Almost surely, 2^123102110100 is an apocalyptic number.

123102110100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123102110100 is an abundant number, since it is smaller than the sum of its proper divisors (233308515660).

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

123102110100 is a wasteful number, since it uses less digits than its factorization.

123102110100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270969 (or 270962 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 123102110100 its reverse (1011201321), we get a palindrome (124113311421).

The spelling of 123102110100 in words is "one hundred twenty-three billion, one hundred two million, one hundred ten thousand, one hundred".