100121988436 has 24 divisors (see below), whose sum is σ = 182848538880. Its totient is φ = 47879955552.

The previous prime is 100121988433. The next prime is 100121988437. The reversal of 100121988436 is 634889121001.

It is a junction number, because it is equal to n+sod(n) for n = 100121988392 and 100121988401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121988433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1073685 + ... + 1163203.

It is an arithmetic number, because the mean of its divisors is an integer number (7618689120).

Almost surely, 2^100121988436 is an apocalyptic number.

It is an amenable number.

100121988436 is a deficient number, since it is larger than the sum of its proper divisors (82726550444).

100121988436 is a wasteful number, since it uses less digits than its factorization.

100121988436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101703 (or 101701 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 100121988436 in words is "one hundred billion, one hundred twenty-one million, nine hundred eighty-eight thousand, four hundred thirty-six".