10021311329 has 4 divisors (see below), whose sum is σ = 10023865860. Its totient is φ = 10018756800.

The previous prime is 10021311281. The next prime is 10021311343. The reversal of 10021311329 is 92311312001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92311312001 = 433 ⋅213190097.

It can be written as a sum of positive squares in 2 ways, for example, as 1381980625 + 8639330704 = 37175^2 + 92948^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10021311329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10021311829) 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, 1271372 + ... + 1279229.

It is an arithmetic number, because the mean of its divisors is an integer number (2505966465).

Almost surely, 2^10021311329 is an apocalyptic number.

It is an amenable number.

10021311329 is a deficient number, since it is larger than the sum of its proper divisors (2554531).

10021311329 is an equidigital number, since it uses as much as digits as its factorization.

10021311329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554530.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 10021311329 in words is "ten billion, twenty-one million, three hundred eleven thousand, three hundred twenty-nine".