321201021020130 has 24 divisors (see below), whose sum is σ = 835122654652572. Its totient is φ = 85653605605344.

The previous prime is 321201021020129. The next prime is 321201021020171. The reversal of 321201021020130 is 31020120102123.

321201021020130 is a `hidden beast` number, since 3 + 21 + 201 + 0 + 210 + 201 + 30 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 321190449273369 + 10571746761 = 17921787^2 + 102819^2 .

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 11 ways as a sum of consecutive naturals, for example, 1784450116689 + ... + 1784450116868.

Almost surely, 2^{321201021020130} is an apocalyptic number.

321201021020130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

321201021020130 is an abundant number, since it is smaller than the sum of its proper divisors (513921633632442).

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

321201021020130 is a wasteful number, since it uses less digits than its factorization.

321201021020130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3568900233570 (or 3568900233567 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 321201021020130 its reverse (31020120102123), we get a palindrome (352221141122253).

The spelling of 321201021020130 in words is "three hundred twenty-one trillion, two hundred one billion, twenty-one million, twenty thousand, one hundred thirty".