1231430352336 has 100 divisors (see below), whose sum is σ = 3565468083012. Its totient is φ = 410321147904.

The previous prime is 1231430352319. The next prime is 1231430352391. The reversal of 1231430352336 is 6332530341321.

1231430352336 is a `hidden beast` number, since 1 + 2 + 3 + 14 + 303 + 5 + 2 + 336 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1109112284736 + 122318067600 = 1053144^2 + 349740^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1231430352336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3264666 + ... + 3622278.

Almost surely, 2^{1231430352336} is an apocalyptic number.

1231430352336 is a gapful number since it is divisible by the number (16) 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 1231430352336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782734041506).

1231430352336 is an abundant number, since it is smaller than the sum of its proper divisors (2334037730676).

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

1231430352336 is a wasteful number, since it uses less digits than its factorization.

1231430352336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360290 (or 360275 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 36.

Adding to 1231430352336 its reverse (6332530341321), we get a palindrome (7563960693657).

The spelling of 1231430352336 in words is "one trillion, two hundred thirty-one billion, four hundred thirty million, three hundred fifty-two thousand, three hundred thirty-six".