10721134081 has 8 divisors (see below), whose sum is σ = 12253376960. Its totient is φ = 9189054288.

The previous prime is 10721134069. The next prime is 10721134093. The reversal of 10721134081 is 18043112701.

It is an interprime number because it is at equal distance from previous prime (10721134069) and next prime (10721134093).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10721134081 is a prime.

It is a super-2 number, since 2×10721134081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10721134001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179335 + ... + 231523.

It is an arithmetic number, because the mean of its divisors is an integer number (1531672120).

Almost surely, 2^10721134081 is an apocalyptic number.

It is an amenable number.

10721134081 is a deficient number, since it is larger than the sum of its proper divisors (1532242879).

10721134081 is an equidigital number, since it uses as much as digits as its factorization.

10721134081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81543.

The product of its (nonzero) digits is 1344, while the sum is 28.

Adding to 10721134081 its reverse (18043112701), we get a palindrome (28764246782).

The spelling of 10721134081 in words is "ten billion, seven hundred twenty-one million, one hundred thirty-four thousand, eighty-one".