2321312021130 has 128 divisors (see below), whose sum is σ = 5723903646720. Its totient is φ = 602286796800.

The previous prime is 2321312021117. The next prime is 2321312021141. The reversal of 2321312021130 is 311202131232.

It is a junction number, because it is equal to n+sod(n) for n = 2321312021097 and 2321312021106.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 225080854 + ... + 225091166.

It is an arithmetic number, because the mean of its divisors is an integer number (44717997240).

Almost surely, 2^{2321312021130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2321312021130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2861951823360).

2321312021130 is an abundant number, since it is smaller than the sum of its proper divisors (3402591625590).

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

2321312021130 is a wasteful number, since it uses less digits than its factorization.

2321312021130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11776.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2321312021130 its reverse (311202131232), we get a palindrome (2632514152362).

The spelling of 2321312021130 in words is "two trillion, three hundred twenty-one billion, three hundred twelve million, twenty-one thousand, one hundred thirty".