43140253321 has 16 divisors (see below), whose sum is σ = 47790864576. Its totient is φ = 38615400000.

The previous prime is 43140253307. The next prime is 43140253349. The reversal of 43140253321 is 12335204134.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 43140253321 - 2¹³ = 43140245129 is a prime.

It is a super-2 number, since 2×43140253321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43140253321.

It is not an unprimeable number, because it can be changed into a prime (43140253021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93826 + ... + 308356.

It is an arithmetic number, because the mean of its divisors is an integer number (2986929036).

Almost surely, 2^43140253321 is an apocalyptic number.

It is an amenable number.

43140253321 is a deficient number, since it is larger than the sum of its proper divisors (4650611255).

43140253321 is a wasteful number, since it uses less digits than its factorization.

43140253321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214824.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 43140253321 its reverse (12335204134), we get a palindrome (55475457455).

The spelling of 43140253321 in words is "forty-three billion, one hundred forty million, two hundred fifty-three thousand, three hundred twenty-one".