1213411445233 has 4 divisors (see below), whose sum is σ = 1306750787188. Its totient is φ = 1120072103280.

The previous prime is 1213411445221. The next prime is 1213411445251. The reversal of 1213411445233 is 3325441143121.

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 577832583409 + 635578861824 = 760153^2 + 797232^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1213411445233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213411445203) 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, 46669670958 + ... + 46669670983.

It is an arithmetic number, because the mean of its divisors is an integer number (326687696797).

Almost surely, 2^{1213411445233} is an apocalyptic number.

1213411445233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1213411445233 is a deficient number, since it is larger than the sum of its proper divisors (93339341955).

1213411445233 is an equidigital number, since it uses as much as digits as its factorization.

1213411445233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93339341954.

The product of its digits is 34560, while the sum is 34.

Adding to 1213411445233 its reverse (3325441143121), we get a palindrome (4538852588354).

The spelling of 1213411445233 in words is "one trillion, two hundred thirteen billion, four hundred eleven million, four hundred forty-five thousand, two hundred thirty-three".