321420233001013 has 4 divisors (see below), whose sum is σ = 321420760176780. Its totient is φ = 321419705825248.

The previous prime is 321420233000989. The next prime is 321420233001073. The reversal of 321420233001013 is 310100332024123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105469654704964 + 215950578296049 = 10269842^2 + 14695257^2 .

It is a cyclic number.

It is not a de Polignac number, because 321420233001013 - 2⁴¹ = 319221209745461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321420233001073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262672270 + ... + 263893087.

It is an arithmetic number, because the mean of its divisors is an integer number (80355190044195).

Almost surely, 2^{321420233001013} is an apocalyptic number.

It is an amenable number.

321420233001013 is a deficient number, since it is larger than the sum of its proper divisors (527175767).

321420233001013 is an equidigital number, since it uses as much as digits as its factorization.

321420233001013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527175766.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 321420233001013 its reverse (310100332024123), we get a palindrome (631520565025136).

The spelling of 321420233001013 in words is "three hundred twenty-one trillion, four hundred twenty billion, two hundred thirty-three million, one thousand, thirteen".