1209376230912 has 400 divisors, whose sum is σ = 3651091484832. Its totient is φ = 398529331200.

The previous prime is 1209376230901. The next prime is 1209376230917. The reversal of 1209376230912 is 2190326739021.

1209376230912 is a `hidden beast` number, since 1 + 2 + 0 + 9 + 3 + 7 + 623 + 0 + 9 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1209376230917) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1960090828 + ... + 1960091444.

Almost surely, 2^{1209376230912} is an apocalyptic number.

1209376230912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1209376230912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1825545742416).

1209376230912 is an abundant number, since it is smaller than the sum of its proper divisors (2441715253920).

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

1209376230912 is an equidigital number, since it uses as much as digits as its factorization.

1209376230912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 1209376230912 in words is "one trillion, two hundred nine billion, three hundred seventy-six million, two hundred thirty thousand, nine hundred twelve".