1071279313812 has 36 divisors (see below), whose sum is σ = 2709511604436. Its totient is φ = 356887975680.

The previous prime is 1071279313807. The next prime is 1071279313817. The reversal of 1071279313812 is 2183139721701.

It is an interprime number because it is at equal distance from previous prime (1071279313807) and next prime (1071279313817).

It can be written as a sum of positive squares in 2 ways, for example, as 253115647236 + 818163666576 = 503106^2 + 904524^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1071279313812² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071279313817) 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, 8483493 + ... + 8608844.

Almost surely, 2^{1071279313812} is an apocalyptic number.

1071279313812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1071279313812 is an abundant number, since it is smaller than the sum of its proper divisors (1638232290624).

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

1071279313812 is a wasteful number, since it uses less digits than its factorization.

1071279313812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17094088 (or 17094083 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 1071279313812 in words is "one trillion, seventy-one billion, two hundred seventy-nine million, three hundred thirteen thousand, eight hundred twelve".