1231355314340 has 24 divisors (see below), whose sum is σ = 2698274255040. Its totient is φ = 471127250528.

The previous prime is 1231355314337. The next prime is 1231355314361. The reversal of 1231355314340 is 434135531321.

It is a self number, because there is not a number n which added to its sum of digits gives 1231355314340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1338429230 + ... + 1338430149.

It is an arithmetic number, because the mean of its divisors is an integer number (112428093960).

Almost surely, 2^{1231355314340} is an apocalyptic number.

1231355314340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231355314340 is an abundant number, since it is smaller than the sum of its proper divisors (1466918940700).

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

1231355314340 is a wasteful number, since it uses less digits than its factorization.

1231355314340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676859411 (or 2676859409 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 1231355314340 in words is "one trillion, two hundred thirty-one billion, three hundred fifty-five million, three hundred fourteen thousand, three hundred forty".