1311031331296 has 12 divisors (see below), whose sum is σ = 2581092933552. Its totient is φ = 655515665632.

The previous prime is 1311031331293. The next prime is 1311031331303. The reversal of 1311031331296 is 6921331301131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311031331293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20484864520 + ... + 20484864583.

It is an arithmetic number, because the mean of its divisors is an integer number (215091077796).

Almost surely, 2^{1311031331296} is an apocalyptic number.

1311031331296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1311031331296 is a deficient number, since it is larger than the sum of its proper divisors (1270061602256).

1311031331296 is an equidigital number, since it uses as much as digits as its factorization.

1311031331296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40969729113 (or 40969729105 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The spelling of 1311031331296 in words is "one trillion, three hundred eleven billion, thirty-one million, three hundred thirty-one thousand, two hundred ninety-six".