1830111921312 has 48 divisors (see below), whose sum is σ = 4804201704960. Its totient is φ = 610017254912.

The previous prime is 1830111921269. The next prime is 1830111921331. The reversal of 1830111921312 is 2131291110381.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2780764 + ... + 3375332.

It is an arithmetic number, because the mean of its divisors is an integer number (100087535520).

Almost surely, 2^{1830111921312} is an apocalyptic number.

1830111921312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1830111921312 is an abundant number, since it is smaller than the sum of its proper divisors (2974089783648).

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

1830111921312 is a wasteful number, since it uses less digits than its factorization.

1830111921312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626645 (or 626637 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 33.

It can be divided in two parts, 18301119 and 21312, that added together give a triangular number (18322431 = T₆₀₅₃).

The spelling of 1830111921312 in words is "one trillion, eight hundred thirty billion, one hundred eleven million, nine hundred twenty-one thousand, three hundred twelve".