12998311911830 has 48 divisors (see below), whose sum is σ = 28649340560880. Its totient is φ = 4222008076608.

The previous prime is 12998311911821. The next prime is 12998311911883. The reversal of 12998311911830 is 3811911389921.

It is a super-2 number, since 2×12998311911830² (a number of 27 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 (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 698074037 + ... + 698092656.

It is an arithmetic number, because the mean of its divisors is an integer number (596861261685).

Almost surely, 2^{12998311911830} is an apocalyptic number.

12998311911830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12998311911830 is an abundant number, since it is smaller than the sum of its proper divisors (15651028649050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12998311911830 is a wasteful number, since it uses less digits than its factorization.

12998311911830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396166733 (or 1396166726 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 56.

The spelling of 12998311911830 in words is "twelve trillion, nine hundred ninety-eight billion, three hundred eleven million, nine hundred eleven thousand, eight hundred thirty".