43201401243 has 64 divisors (see below), whose sum is σ = 79430034432. Its totient is φ = 20156014080.

The previous prime is 43201401179. The next prime is 43201401337. The reversal of 43201401243 is 34210410234.

It is not a de Polignac number, because 43201401243 - 2⁶ = 43201401179 is a prime.

It is a super-2 number, since 2×43201401243² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43201401743) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83296 + ... + 305517.

It is an arithmetic number, because the mean of its divisors is an integer number (1241094288).

Almost surely, 2^43201401243 is an apocalyptic number.

43201401243 is a deficient number, since it is larger than the sum of its proper divisors (36228633189).

43201401243 is a wasteful number, since it uses less digits than its factorization.

43201401243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388884.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 43201401243 its reverse (34210410234), we get a palindrome (77411811477).

It can be divided in two parts, 43201 and 401243, that added together give a palindrome (444444).

The spelling of 43201401243 in words is "forty-three billion, two hundred one million, four hundred one thousand, two hundred forty-three".