1213312202113 has 16 divisors (see below), whose sum is σ = 1369378445760. Its totient is φ = 1064880331200.

The previous prime is 1213312202101. The next prime is 1213312202147. The reversal of 1213312202113 is 3112022133121.

It is a cyclic number.

It is not a de Polignac number, because 1213312202113 - 2⁹ = 1213312201601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213312202173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3500131 + ... + 3831127.

It is an arithmetic number, because the mean of its divisors is an integer number (85586152860).

Almost surely, 2^{1213312202113} is an apocalyptic number.

It is an amenable number.

1213312202113 is a deficient number, since it is larger than the sum of its proper divisors (156066243647).

1213312202113 is a wasteful number, since it uses less digits than its factorization.

1213312202113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342528.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1213312202113 its reverse (3112022133121), we get a palindrome (4325334335234).

The spelling of 1213312202113 in words is "one trillion, two hundred thirteen billion, three hundred twelve million, two hundred two thousand, one hundred thirteen".