123010100 has 36 divisors (see below), whose sum is σ = 273149184. Its totient is φ = 48058080.

The previous prime is 123010087. The next prime is 123010109. The reversal of 123010100 is 1010321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123010109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10004 + ... + 18603.

Almost surely, 2^123010100 is an apocalyptic number.

123010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123010100 is an abundant number, since it is smaller than the sum of its proper divisors (150139084).

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

123010100 is a wasteful number, since it uses less digits than its factorization.

123010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28664 (or 28657 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 123010100 is about 11090.9918402278. The cubic root of 123010100 is about 497.3325952083.

Adding to 123010100 its reverse (1010321), we get a palindrome (124020421).

The spelling of 123010100 in words is "one hundred twenty-three million, ten thousand, one hundred".