10116748021 has 4 divisors (see below), whose sum is σ = 10119677932. Its totient is φ = 10113818112.

The previous prime is 10116747983. The next prime is 10116748027. The reversal of 10116748021 is 12084761101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12084761101 = 7 ⋅1726394443.

It can be written as a sum of positive squares in 2 ways, for example, as 4707880996 + 5408867025 = 68614^2 + 73545^2 .

It is a cyclic number.

It is not a de Polignac number, because 10116748021 - 2¹¹ = 10116745973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10116748027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1459770 + ... + 1466683.

It is an arithmetic number, because the mean of its divisors is an integer number (2529919483).

Almost surely, 2^10116748021 is an apocalyptic number.

It is an amenable number.

10116748021 is a deficient number, since it is larger than the sum of its proper divisors (2929911).

10116748021 is an equidigital number, since it uses as much as digits as its factorization.

10116748021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929910.

The product of its (nonzero) digits is 2688, while the sum is 31.

The spelling of 10116748021 in words is "ten billion, one hundred sixteen million, seven hundred forty-eight thousand, twenty-one".