100020099938 has 32 divisors (see below), whose sum is σ = 164786503680. Its totient is φ = 45154340560.

The previous prime is 100020099937. The next prime is 100020099943. The reversal of 100020099938 is 839990020001.

It is a junction number, because it is equal to n+sod(n) for n = 100020099895 and 100020099904.

It is not an unprimeable number, because it can be changed into a prime (100020099937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1988981 + ... + 2038647.

It is an arithmetic number, because the mean of its divisors is an integer number (5149578240).

Almost surely, 2^100020099938 is an apocalyptic number.

100020099938 is a deficient number, since it is larger than the sum of its proper divisors (64766403742).

100020099938 is a wasteful number, since it uses less digits than its factorization.

100020099938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50302.

The product of its (nonzero) digits is 34992, while the sum is 41.

The spelling of 100020099938 in words is "one hundred billion, twenty million, ninety-nine thousand, nine hundred thirty-eight".