100001020994 has 32 divisors (see below), whose sum is σ = 178930080000. Its totient is φ = 40983604992.

The previous prime is 100001020969. The next prime is 100001021023. The reversal of 100001020994 is 499020100001.

It is a Curzon number.

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, 1273382 + ... + 1349630.

It is an arithmetic number, because the mean of its divisors is an integer number (5591565000).

Almost surely, 2^100001020994 is an apocalyptic number.

100001020994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

100001020994 is a deficient number, since it is larger than the sum of its proper divisors (78929059006).

100001020994 is a wasteful number, since it uses less digits than its factorization.

100001020994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80354.

The product of its (nonzero) digits is 648, while the sum is 26.

Adding to 100001020994 its reverse (499020100001), we get a palindrome (599021120995).

The spelling of 100001020994 in words is "one hundred billion, one million, twenty thousand, nine hundred ninety-four".