1313020213202 has 4 divisors (see below), whose sum is σ = 1969530319806. Its totient is φ = 656510106600.

The previous prime is 1313020213201. The next prime is 1313020213243. The reversal of 1313020213202 is 2023120203131.

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

It can be written as a sum of positive squares in only one way, i.e., 1238366126761 + 74654086441 = 1112819^2 + 273229^2 .

It is not an unprimeable number, because it can be changed into a prime (1313020213201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328255053299 + ... + 328255053302.

Almost surely, 2^{1313020213202} is an apocalyptic number.

1313020213202 is a deficient number, since it is larger than the sum of its proper divisors (656510106604).

1313020213202 is an equidigital number, since it uses as much as digits as its factorization.

1313020213202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656510106603.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1313020213202 its reverse (2023120203131), we get a palindrome (3336140416333).

The spelling of 1313020213202 in words is "one trillion, three hundred thirteen billion, twenty million, two hundred thirteen thousand, two hundred two".