101281708994 has 4 divisors (see below), whose sum is σ = 151922563494. Its totient is φ = 50640854496.

The previous prime is 101281708987. The next prime is 101281709003. The reversal of 101281708994 is 499807182101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 499807182101 = 1543 ⋅323919107.

It can be written as a sum of positive squares in only one way, i.e., 79700629969 + 21581079025 = 282313^2 + 146905^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25320427247 + ... + 25320427250.

Almost surely, 2^101281708994 is an apocalyptic number.

101281708994 is a deficient number, since it is larger than the sum of its proper divisors (50640854500).

101281708994 is an equidigital number, since it uses as much as digits as its factorization.

101281708994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50640854499.

The product of its (nonzero) digits is 290304, while the sum is 50.

The spelling of 101281708994 in words is "one hundred one billion, two hundred eighty-one million, seven hundred eight thousand, nine hundred ninety-four".