13145420043 has 32 divisors (see below), whose sum is σ = 22262469120. Its totient is φ = 7509754080.

The previous prime is 13145420021. The next prime is 13145420081. The reversal of 13145420043 is 34002454131.

It is a happy number.

13145420043 is a `hidden beast` number, since 1 + 3 + 1 + 454 + 200 + 4 + 3 = 666.

It is not a de Polignac number, because 13145420043 - 2⁸ = 13145419787 is a prime.

It is a super-2 number, since 2×13145420043² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 13145419989 and 13145420016.

It is not an unprimeable number, because it can be changed into a prime (13145420143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1101796 + ... + 1113662.

It is an arithmetic number, because the mean of its divisors is an integer number (695702160).

Almost surely, 2^13145420043 is an apocalyptic number.

13145420043 is a deficient number, since it is larger than the sum of its proper divisors (9117049077).

13145420043 is a wasteful number, since it uses less digits than its factorization.

13145420043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17744 (or 17738 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 13145420043 its reverse (34002454131), we get a palindrome (47147874174).

The spelling of 13145420043 in words is "thirteen billion, one hundred forty-five million, four hundred twenty thousand, forty-three".