1312088777712 has 80 divisors (see below), whose sum is σ = 3768331346080. Its totient is φ = 437113179648.

The previous prime is 1312088777711. The next prime is 1312088777717. The reversal of 1312088777712 is 2177778802131.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312088777711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109003 + ... + 1623594.

It is an arithmetic number, because the mean of its divisors is an integer number (47104141826).

Almost surely, 2^{1312088777712} is an apocalyptic number.

1312088777712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312088777712 is an abundant number, since it is smaller than the sum of its proper divisors (2456242568368).

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

1312088777712 is a wasteful number, since it uses less digits than its factorization.

1312088777712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734367 (or 1734355 counting only the distinct ones).

The product of its (nonzero) digits is 1843968, while the sum is 54.

The spelling of 1312088777712 in words is "one trillion, three hundred twelve billion, eighty-eight million, seven hundred seventy-seven thousand, seven hundred twelve".