1232919301728 has 48 divisors (see below), whose sum is σ = 3236494360176. Its totient is φ = 410962790400.

The previous prime is 1232919301727. The next prime is 1232919301739. The reversal of 1232919301728 is 8271039192321.

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

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232919301723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4335900 + ... + 4611492.

It is an arithmetic number, because the mean of its divisors is an integer number (67426965837).

Almost surely, 2^{1232919301728} is an apocalyptic number.

It is an amenable number.

1232919301728 is an abundant number, since it is smaller than the sum of its proper divisors (2003575058448).

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

1232919301728 is a wasteful number, since it uses less digits than its factorization.

1232919301728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322207 (or 322199 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 1232919301728 in words is "one trillion, two hundred thirty-two billion, nine hundred nineteen million, three hundred one thousand, seven hundred twenty-eight".