1312311012212 has 24 divisors (see below), whose sum is σ = 2304314376000. Its totient is φ = 653939098560.

The previous prime is 1312311012197. The next prime is 1312311012277. The reversal of 1312311012212 is 2122101132131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 998912 + ... + 1903272.

It is an arithmetic number, because the mean of its divisors is an integer number (96013099000).

Almost surely, 2^{1312311012212} is an apocalyptic number.

It is an amenable number.

1312311012212 is a deficient number, since it is larger than the sum of its proper divisors (992003363788).

1312311012212 is a wasteful number, since it uses less digits than its factorization.

1312311012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905591 (or 905589 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1312311012212 its reverse (2122101132131), we get a palindrome (3434412144343).

The spelling of 1312311012212 in words is "one trillion, three hundred twelve billion, three hundred eleven million, twelve thousand, two hundred twelve".