13311210400442 has 8 divisors (see below), whose sum is σ = 20020345938516. Its totient is φ = 6637761754272.

The previous prime is 13311210400399. The next prime is 13311210400447. The reversal of 13311210400442 is 24400401211331.

It can be written as a sum of positive squares in 2 ways, for example, as 13211632917961 + 99577482481 = 3634781^2 + 315559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13311210400447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8921722043 + ... + 8921723534.

Almost surely, 2^{13311210400442} is an apocalyptic number.

13311210400442 is a deficient number, since it is larger than the sum of its proper divisors (6709135538074).

13311210400442 is a wasteful number, since it uses less digits than its factorization.

13311210400442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17843445952.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 13311210400442 its reverse (24400401211331), we get a palindrome (37711611611773).

The spelling of 13311210400442 in words is "thirteen trillion, three hundred eleven billion, two hundred ten million, four hundred thousand, four hundred forty-two".