1213210231233 has 64 divisors (see below), whose sum is σ = 2230601060352. Its totient is φ = 566035879680.

The previous prime is 1213210231199. The next prime is 1213210231237. The reversal of 1213210231233 is 3321320123121.

It is not a de Polignac number, because 1213210231233 - 2⁸ = 1213210230977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1213210231237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5348341 + ... + 5570562.

It is an arithmetic number, because the mean of its divisors is an integer number (34853141568).

Almost surely, 2^{1213210231233} is an apocalyptic number.

1213210231233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1213210231233 is a deficient number, since it is larger than the sum of its proper divisors (1017390829119).

1213210231233 is a wasteful number, since it uses less digits than its factorization.

1213210231233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10918974.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1213210231233 its reverse (3321320123121), we get a palindrome (4534530354354).

The spelling of 1213210231233 in words is "one trillion, two hundred thirteen billion, two hundred ten million, two hundred thirty-one thousand, two hundred thirty-three".