43020013123452 has 12 divisors (see below), whose sum is σ = 100380030621416. Its totient is φ = 14340004374480.

The previous prime is 43020013123427. The next prime is 43020013123453. The reversal of 43020013123452 is 25432131002034.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43020013123453) 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, 1792500546799 + ... + 1792500546822.

Almost surely, 2^{43020013123452} is an apocalyptic number.

It is an amenable number.

43020013123452 is an abundant number, since it is smaller than the sum of its proper divisors (57360017497964).

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

43020013123452 is a wasteful number, since it uses less digits than its factorization.

43020013123452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585001093628 (or 3585001093626 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 43020013123452 its reverse (25432131002034), we get a palindrome (68452144125486).

The spelling of 43020013123452 in words is "forty-three trillion, twenty billion, thirteen million, one hundred twenty-three thousand, four hundred fifty-two".