1213111313202 has 8 divisors (see below), whose sum is σ = 2426222626416. Its totient is φ = 404370437732.

The previous prime is 1213111313173. The next prime is 1213111313209. The reversal of 1213111313202 is 2023131113121.

It is a sphenic number, since it is the product of 3 distinct primes.

1213111313202 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1213111313209) 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, 101092609428 + ... + 101092609439.

It is an arithmetic number, because the mean of its divisors is an integer number (303277828302).

Almost surely, 2^{1213111313202} is an apocalyptic number.

1213111313202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1213111313202 is a wasteful number, since it uses less digits than its factorization.

1213111313202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202185218872.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1213111313202 its reverse (2023131113121), we get a palindrome (3236242426323).

The spelling of 1213111313202 in words is "one trillion, two hundred thirteen billion, one hundred eleven million, three hundred thirteen thousand, two hundred two".