13423510331144 has 32 divisors (see below), whose sum is σ = 25271586171000. Its totient is φ = 6684467699712.

The previous prime is 13423510331137. The next prime is 13423510331171. The reversal of 13423510331144 is 44113301532431.

It can be written as a sum of positive squares in 4 ways, for example, as 9239399171044 + 4184111160100 = 3039638^2 + 2045510^2 .

It is a super-2 number, since 2×13423510331144² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653189 + ... + 5222420.

Almost surely, 2^{13423510331144} is an apocalyptic number.

It is an amenable number.

13423510331144 is a deficient number, since it is larger than the sum of its proper divisors (11848075839856).

13423510331144 is a wasteful number, since it uses less digits than its factorization.

13423510331144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5876777 (or 5876773 counting only the distinct ones).

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

Adding to 13423510331144 its reverse (44113301532431), we get a palindrome (57536811863575).

The spelling of 13423510331144 in words is "thirteen trillion, four hundred twenty-three billion, five hundred ten million, three hundred thirty-one thousand, one hundred forty-four".