1312232233212 has 36 divisors (see below), whose sum is σ = 3317187595176. Its totient is φ = 437390157600.

The previous prime is 1312232233199. The next prime is 1312232233217. The reversal of 1312232233212 is 2123322322131.

1312232233212 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 2 + 322 + 332 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312232233217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72414 + ... + 1621637.

It is an arithmetic number, because the mean of its divisors is an integer number (92144099866).

Almost surely, 2^{1312232233212} is an apocalyptic number.

1312232233212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312232233212 is an abundant number, since it is smaller than the sum of its proper divisors (2004955361964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312232233212 is a wasteful number, since it uses less digits than its factorization.

1312232233212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715578 (or 1715573 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 1312232233212 its reverse (2123322322131), we get a palindrome (3435554555343).

The spelling of 1312232233212 in words is "one trillion, three hundred twelve billion, two hundred thirty-two million, two hundred thirty-three thousand, two hundred twelve".