1310023201212 has 72 divisors (see below), whose sum is σ = 3612883153152. Its totient is φ = 396933328800.

The previous prime is 1310023201199. The next prime is 1310023201217. The reversal of 1310023201212 is 2121023200131.

1310023201212 is a `hidden beast` number, since 1 + 310 + 0 + 232 + 0 + 121 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310023201217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3542703 + ... + 3894969.

Almost surely, 2^{1310023201212} is an apocalyptic number.

1310023201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1310023201212 is an abundant number, since it is smaller than the sum of its proper divisors (2302859951940).

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

1310023201212 is a wasteful number, since it uses less digits than its factorization.

1310023201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361679 (or 361674 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1310023201212 its reverse (2121023200131), we get a palindrome (3431046401343).

The spelling of 1310023201212 in words is "one trillion, three hundred ten billion, twenty-three million, two hundred one thousand, two hundred twelve".