1213210334213 has 4 divisors (see below), whose sum is σ = 1218286528320. Its totient is φ = 1208134140108.

The previous prime is 1213210334191. The next prime is 1213210334233. The reversal of 1213210334213 is 3124330123121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1213210334213 - 2⁸ = 1213210333957 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 (1213210334233) 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, 2538096695 + ... + 2538097172.

It is an arithmetic number, because the mean of its divisors is an integer number (304571632080).

Almost surely, 2^{1213210334213} is an apocalyptic number.

It is an amenable number.

1213210334213 is a deficient number, since it is larger than the sum of its proper divisors (5076194107).

1213210334213 is an equidigital number, since it uses as much as digits as its factorization.

1213210334213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5076194106.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 1213210334213 its reverse (3124330123121), we get a palindrome (4337540457334).

The spelling of 1213210334213 in words is "one trillion, two hundred thirteen billion, two hundred ten million, three hundred thirty-four thousand, two hundred thirteen".