1310031021212 has 6 divisors (see below), whose sum is σ = 2292554287128. Its totient is φ = 655015510604.

The previous prime is 1310031021191. The next prime is 1310031021251. The reversal of 1310031021212 is 2121201300131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163753877648 + ... + 163753877655.

It is an arithmetic number, because the mean of its divisors is an integer number (382092381188).

Almost surely, 2^{1310031021212} is an apocalyptic number.

It is an amenable number.

1310031021212 is a deficient number, since it is larger than the sum of its proper divisors (982523265916).

1310031021212 is a wasteful number, since it uses less digits than its factorization.

1310031021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327507755307 (or 327507755305 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1310031021212 its reverse (2121201300131), we get a palindrome (3431232321343).

The spelling of 1310031021212 in words is "one trillion, three hundred ten billion, thirty-one million, twenty-one thousand, two hundred twelve".