13311443443402 has 32 divisors (see below), whose sum is σ = 22770145781712. Its totient is φ = 5781798779904.

The previous prime is 13311443443373. The next prime is 13311443443427. The reversal of 13311443443402 is 20434434411331.

It can be written as a sum of positive squares in 8 ways, for example, as 3093760870281 + 10217682573121 = 1758909^2 + 3196511^2 .

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, 3262888 + ... + 6104860.

Almost surely, 2^{13311443443402} is an apocalyptic number.

13311443443402 is a deficient number, since it is larger than the sum of its proper divisors (9458702338310).

13311443443402 is a wasteful number, since it uses less digits than its factorization.

13311443443402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852602.

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 13311443443402 its reverse (20434434411331), we get a palindrome (33745877854733).

The spelling of 13311443443402 in words is "thirteen trillion, three hundred eleven billion, four hundred forty-three million, four hundred forty-three thousand, four hundred two".