20101010894 has 8 divisors (see below), whose sum is σ = 30157218000. Its totient is φ = 10048604896.

The previous prime is 20101010873. The next prime is 20101010927. The reversal of 20101010894 is 49801010102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937019 + ... + 958230.

It is an arithmetic number, because the mean of its divisors is an integer number (3769652250).

Almost surely, 2^20101010894 is an apocalyptic number.

20101010894 is a deficient number, since it is larger than the sum of its proper divisors (10056207106).

20101010894 is a wasteful number, since it uses less digits than its factorization.

20101010894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900554.

The product of its (nonzero) digits is 576, while the sum is 26.

Adding to 20101010894 its reverse (49801010102), we get a palindrome (69902020996).

The spelling of 20101010894 in words is "twenty billion, one hundred one million, ten thousand, eight hundred ninety-four".