831276120 has 128 divisors (see below), whose sum is σ = 2612736000. Its totient is φ = 211183104.

The previous prime is 831276101. The next prime is 831276137. The reversal of 831276120 is 21672138.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 962809 + ... + 963671.

It is an arithmetic number, because the mean of its divisors is an integer number (20412000).

Almost surely, 2^831276120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 831276120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306368000).

831276120 is an abundant number, since it is smaller than the sum of its proper divisors (1781459880).

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

831276120 is a wasteful number, since it uses less digits than its factorization.

831276120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1245 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 831276120 is about 28831.8594613667. The cubic root of 831276120 is about 940.2610260460.

The spelling of 831276120 in words is "eight hundred thirty-one million, two hundred seventy-six thousand, one hundred twenty".