10340520321 has 16 divisors (see below), whose sum is σ = 14051911104. Its totient is φ = 6761486784.

The previous prime is 10340520293. The next prime is 10340520349. The reversal of 10340520321 is 12302504301.

It is an interprime number because it is at equal distance from previous prime (10340520293) and next prime (10340520349).

It is not a de Polignac number, because 10340520321 - 2⁶ = 10340520257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10340520361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 619335 + ... + 635811.

It is an arithmetic number, because the mean of its divisors is an integer number (878244444).

Almost surely, 2^10340520321 is an apocalyptic number.

It is an amenable number.

10340520321 is a deficient number, since it is larger than the sum of its proper divisors (3711390783).

10340520321 is a wasteful number, since it uses less digits than its factorization.

10340520321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20480.

The product of its (nonzero) digits is 720, while the sum is 21.

The spelling of 10340520321 in words is "ten billion, three hundred forty million, five hundred twenty thousand, three hundred twenty-one".