12921439310 has 16 divisors (see below), whose sum is σ = 25047713376. Its totient is φ = 4770992928.

The previous prime is 12921439291. The next prime is 12921439319. The reversal of 12921439310 is 1393412921.

It is a super-2 number, since 2×12921439310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12921439319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49697714 + ... + 49697973.

It is an arithmetic number, because the mean of its divisors is an integer number (1565482086).

Almost surely, 2^12921439310 is an apocalyptic number.

12921439310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12921439310 is a deficient number, since it is larger than the sum of its proper divisors (12126274066).

12921439310 is a wasteful number, since it uses less digits than its factorization.

12921439310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99395707.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 12921439310 in words is "twelve billion, nine hundred twenty-one million, four hundred thirty-nine thousand, three hundred ten".