10101010994 has 4 divisors (see below), whose sum is σ = 15151516494. Its totient is φ = 5050505496.

The previous prime is 10101010981. The next prime is 10101010999. The reversal of 10101010994 is 49901010101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49901010101 = 43 ⋅1160488607.

It can be written as a sum of positive squares in only one way, i.e., 10089198025 + 11812969 = 100445^2 + 3437^2 .

It is not an unprimeable number, because it can be changed into a prime (10101010999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525252747 + ... + 2525252750.

Almost surely, 2^10101010994 is an apocalyptic number.

10101010994 is a deficient number, since it is larger than the sum of its proper divisors (5050505500).

10101010994 is an equidigital number, since it uses as much as digits as its factorization.

10101010994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050505499.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 10101010994 in words is "ten billion, one hundred one million, ten thousand, nine hundred ninety-four".