123445667900 has 18 divisors (see below), whose sum is σ = 267877099560. Its totient is φ = 49378267120.

The previous prime is 123445667899. The next prime is 123445667903. The reversal of 123445667900 is 9766544321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123445667903) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 617228240 + ... + 617228439.

Almost surely, 2^123445667900 is an apocalyptic number.

123445667900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123445667900 is an abundant number, since it is smaller than the sum of its proper divisors (144431431660).

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

123445667900 is a wasteful number, since it uses less digits than its factorization.

123445667900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234456693 (or 1234456686 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 123445667900 in words is "one hundred twenty-three billion, four hundred forty-five million, six hundred sixty-seven thousand, nine hundred".