2312321130 has 192 divisors, whose sum is σ = 7445737728. Its totient is φ = 485775360.

The previous prime is 2312321129. The next prime is 2312321159. The reversal of 2312321130 is 311232132.

2312321130 is a `hidden beast` number, since 2 + 312 + 321 + 1 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 458020 + ... + 463040.

It is an arithmetic number, because the mean of its divisors is an integer number (38779884).

Almost surely, 2^2312321130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2312321130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3722868864).

2312321130 is an abundant number, since it is smaller than the sum of its proper divisors (5133416598).

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

2312321130 is a wasteful number, since it uses less digits than its factorization.

2312321130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101 (or 5098 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2312321130 is about 48086.6003165123. The cubic root of 2312321130 is about 1322.3590219493.

Adding to 2312321130 its reverse (311232132), we get a palindrome (2623553262).

It can be divided in two parts, 23123 and 21130, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 2312321130 in words is "two billion, three hundred twelve million, three hundred twenty-one thousand, one hundred thirty".