321131213230 has 16 divisors (see below), whose sum is σ = 578418763104. Its totient is φ = 128367467680.

The previous prime is 321131213209. The next prime is 321131213237. The reversal of 321131213230 is 32312131123.

It is a super-2 number, since 2×321131213230² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321131213237) 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, 10611337 + ... + 10641556.

It is an arithmetic number, because the mean of its divisors is an integer number (36151172694).

Almost surely, 2^321131213230 is an apocalyptic number.

321131213230 is a deficient number, since it is larger than the sum of its proper divisors (257287549874).

321131213230 is a wasteful number, since it uses less digits than its factorization.

321131213230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21254411.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 321131213230 its reverse (32312131123), we get a palindrome (353443344353).

It can be divided in two parts, 321131 and 213230, that added together give a square (534361 = 731²).

The spelling of 321131213230 in words is "three hundred twenty-one billion, one hundred thirty-one million, two hundred thirteen thousand, two hundred thirty".