1010001011994 has 192 divisors, whose sum is σ = 2479174483968. Its totient is φ = 294845443200.

The previous prime is 1010001011993. The next prime is 1010001012011. The reversal of 1010001011994 is 4991101000101.

It is not an unprimeable number, because it can be changed into a prime (1010001011993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 375882919 + ... + 375885605.

It is an arithmetic number, because the mean of its divisors is an integer number (12912367104).

Almost surely, 2^{1010001011994} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1010001011994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239587241984).

1010001011994 is an abundant number, since it is smaller than the sum of its proper divisors (1469173471974).

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

1010001011994 is a wasteful number, since it uses less digits than its factorization.

1010001011994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273 (or 3270 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 1010001011994 in words is "one trillion, ten billion, one million, eleven thousand, nine hundred ninety-four".