1231214213223 has 6 divisors (see below), whose sum is σ = 1778420530224. Its totient is φ = 820809475476.

The previous prime is 1231214213219. The next prime is 1231214213249. The reversal of 1231214213223 is 3223124121321.

1231214213223 is a `hidden beast` number, since 1 + 2 + 3 + 12 + 1 + 421 + 3 + 223 = 666.

It is not a de Polignac number, because 1231214213223 - 2² = 1231214213219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231214213293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68400789615 + ... + 68400789632.

It is an arithmetic number, because the mean of its divisors is an integer number (296403421704).

Almost surely, 2^{1231214213223} is an apocalyptic number.

1231214213223 is a deficient number, since it is larger than the sum of its proper divisors (547206317001).

1231214213223 is a wasteful number, since it uses less digits than its factorization.

1231214213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136801579253 (or 136801579250 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 1231214213223 its reverse (3223124121321), we get a palindrome (4454338334544).

The spelling of 1231214213223 in words is "one trillion, two hundred thirty-one billion, two hundred fourteen million, two hundred thirteen thousand, two hundred twenty-three".