12701921830 has 32 divisors (see below), whose sum is σ = 24627556800. Its totient is φ = 4688917632.

The previous prime is 12701921821. The next prime is 12701921851. The reversal of 12701921830 is 3812910721.

It is a super-2 number, since 2×12701921830² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860956 + ... + 875584.

It is an arithmetic number, because the mean of its divisors is an integer number (769611150).

Almost surely, 2^12701921830 is an apocalyptic number.

12701921830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12701921830 is a deficient number, since it is larger than the sum of its proper divisors (11925634970).

12701921830 is a wasteful number, since it uses less digits than its factorization.

12701921830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21328.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 12701921830 in words is "twelve billion, seven hundred one million, nine hundred twenty-one thousand, eight hundred thirty".