1307731169412 has 120 divisors (see below), whose sum is σ = 3475659465432. Its totient is φ = 428647334400.

The previous prime is 1307731169291. The next prime is 1307731169467. The reversal of 1307731169412 is 2149611377031.

1307731169412 is a `hidden beast` number, since 1 + 3 + 0 + 7 + 73 + 1 + 169 + 412 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 18016619076 + 1289714550336 = 134226^2 + 1135656^2 .

It is a super-2 number, since 2×1307731169412² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 101046862 + ... + 101059802.

Almost surely, 2^{1307731169412} is an apocalyptic number.

1307731169412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1307731169412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1737829732716).

1307731169412 is an abundant number, since it is smaller than the sum of its proper divisors (2167928296020).

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

1307731169412 is a wasteful number, since it uses less digits than its factorization.

1307731169412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18131 (or 18120 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 1307731169412 in words is "one trillion, three hundred seven billion, seven hundred thirty-one million, one hundred sixty-nine thousand, four hundred twelve".