1231200331302 has 64 divisors (see below), whose sum is σ = 2556397509120. Its totient is φ = 394836374016.

The previous prime is 1231200331279. The next prime is 1231200331363. The reversal of 1231200331302 is 2031330021321.

It is a super-2 number, since 2×1231200331302² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116508423 + ... + 116518989.

It is an arithmetic number, because the mean of its divisors is an integer number (39943711080).

Almost surely, 2^{1231200331302} is an apocalyptic number.

1231200331302 is an abundant number, since it is smaller than the sum of its proper divisors (1325197177818).

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

1231200331302 is a wasteful number, since it uses less digits than its factorization.

1231200331302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12925.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1231200331302 its reverse (2031330021321), we get a palindrome (3262530352623).

The spelling of 1231200331302 in words is "one trillion, two hundred thirty-one billion, two hundred million, three hundred thirty-one thousand, three hundred two".