1311030012312 has 48 divisors (see below), whose sum is σ = 3646671325440. Its totient is φ = 425198922048.

The previous prime is 1311030012209. The next prime is 1311030012317. The reversal of 1311030012312 is 2132100301131.

1311030012312 is a `hidden beast` number, since 1 + 31 + 10 + 300 + 12 + 312 = 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 (1311030012317) 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, 246061528 + ... + 246066855.

It is an arithmetic number, because the mean of its divisors is an integer number (75972319280).

Almost surely, 2^{1311030012312} is an apocalyptic number.

1311030012312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311030012312 is an abundant number, since it is smaller than the sum of its proper divisors (2335641313128).

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

1311030012312 is a wasteful number, since it uses less digits than its factorization.

1311030012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492128432 (or 492128425 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1311030012312 its reverse (2132100301131), we get a palindrome (3443130313443).

The spelling of 1311030012312 in words is "one trillion, three hundred eleven billion, thirty million, twelve thousand, three hundred twelve".