100240123421000 has 64 divisors (see below), whose sum is σ = 236274019703280. Its totient is φ = 39803377420800.

The previous prime is 100240123420973. The next prime is 100240123421027. The reversal of 100240123421000 is 124321042001.

It is an interprime number because it is at equal distance from previous prime (100240123420973) and next prime (100240123421027).

It can be written as a sum of positive squares in 8 ways, for example, as 22794456117316 + 77445667303684 = 4774354^2 + 8800322^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 365702867 + ... + 365976866.

Almost surely, 2^{100240123421000} is an apocalyptic number.

100240123421000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100240123421000 is an abundant number, since it is smaller than the sum of its proper divisors (136033896282280).

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

100240123421000 is a wasteful number, since it uses less digits than its factorization.

100240123421000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731679891 (or 731679877 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 100240123421000 its reverse (124321042001), we get a palindrome (100364444463001).

The spelling of 100240123421000 in words is "one hundred trillion, two hundred forty billion, one hundred twenty-three million, four hundred twenty-one thousand".