101001009998 has 16 divisors (see below), whose sum is σ = 176678152800. Its totient is φ = 43286146848.

The previous prime is 101001009997. The next prime is 101001010013. The reversal of 101001009998 is 899900100101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101001009997) 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, 73615211 + ... + 73616582.

It is an arithmetic number, because the mean of its divisors is an integer number (11042384550).

Almost surely, 2^101001009998 is an apocalyptic number.

101001009998 is a deficient number, since it is larger than the sum of its proper divisors (75677142802).

101001009998 is an equidigital number, since it uses as much as digits as its factorization.

101001009998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147231816 (or 147231802 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 38.

The spelling of 101001009998 in words is "one hundred one billion, one million, nine thousand, nine hundred ninety-eight".