321311130 has 48 divisors (see below), whose sum is σ = 897052320. Its totient is φ = 73442208.

The previous prime is 321311119. The next prime is 321311131. The reversal of 321311130 is 31113123.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (321311131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107820 + ... + 110759.

It is an arithmetic number, because the mean of its divisors is an integer number (18688590).

Almost surely, 2^321311130 is an apocalyptic number.

321311130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

321311130 is an abundant number, since it is smaller than the sum of its proper divisors (575741190).

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

321311130 is a wasteful number, since it uses less digits than its factorization.

321311130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218603 (or 218596 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 321311130 is about 17925.1535558276. The cubic root of 321311130 is about 684.9232727032.

Adding to 321311130 its reverse (31113123), we get a palindrome (352424253).

The spelling of 321311130 in words is "three hundred twenty-one million, three hundred eleven thousand, one hundred thirty".