123002023100 has 36 divisors (see below), whose sum is σ = 291179337288. Its totient is φ = 44728008000.

The previous prime is 123002023051. The next prime is 123002023121. The reversal of 123002023100 is 1320200321.

It is a happy number.

It is a super-2 number, since 2×123002023100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55908911 + ... + 55911110.

Almost surely, 2^123002023100 is an apocalyptic number.

123002023100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123002023100 is an abundant number, since it is smaller than the sum of its proper divisors (168177314188).

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

123002023100 is a wasteful number, since it uses less digits than its factorization.

123002023100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111820046 (or 111820039 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 123002023100 its reverse (1320200321), we get a palindrome (124322223421).

The spelling of 123002023100 in words is "one hundred twenty-three billion, two million, twenty-three thousand, one hundred".