1331211435344 has 20 divisors (see below), whose sum is σ = 2947682464224. Its totient is φ = 570519186528.

The previous prime is 1331211435293. The next prime is 1331211435353. The reversal of 1331211435344 is 4435341121331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5942908082 + ... + 5942908305.

Almost surely, 2^{1331211435344} is an apocalyptic number.

1331211435344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1331211435344 is an abundant number, since it is smaller than the sum of its proper divisors (1616471028880).

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

1331211435344 is a wasteful number, since it uses less digits than its factorization.

1331211435344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11885816402 (or 11885816396 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

Adding to 1331211435344 its reverse (4435341121331), we get a palindrome (5766552556675).

The spelling of 1331211435344 in words is "one trillion, three hundred thirty-one billion, two hundred eleven million, four hundred thirty-five thousand, three hundred forty-four".