1312136240140 has 48 divisors (see below), whose sum is σ = 3006092404224. Its totient is φ = 477123377600.

The previous prime is 1312136240137. The next prime is 1312136240167. The reversal of 1312136240140 is 410426312131.

It is a junction number, because it is equal to n+sod(n) for n = 1312136240099 and 1312136240108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7185447 + ... + 7365793.

It is an arithmetic number, because the mean of its divisors is an integer number (62626925088).

Almost surely, 2^{1312136240140} is an apocalyptic number.

1312136240140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312136240140 is an abundant number, since it is smaller than the sum of its proper divisors (1693956164084).

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

1312136240140 is a wasteful number, since it uses less digits than its factorization.

1312136240140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213438 (or 213436 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 1312136240140 in words is "one trillion, three hundred twelve billion, one hundred thirty-six million, two hundred forty thousand, one hundred forty".