43243032131 has 32 divisors (see below), whose sum is σ = 48550320000. Its totient is φ = 38241358848.

The previous prime is 43243032103. The next prime is 43243032137. The reversal of 43243032131 is 13123034234.

It is a cyclic number.

It is not a de Polignac number, because 43243032131 - 2³⁴ = 26063162947 is a prime.

It is a super-2 number, since 2×43243032131² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43243032131.

It is not an unprimeable number, because it can be changed into a prime (43243032137) 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, 42687581 + ... + 42688593.

It is an arithmetic number, because the mean of its divisors is an integer number (1517197500).

Almost surely, 2^43243032131 is an apocalyptic number.

43243032131 is a deficient number, since it is larger than the sum of its proper divisors (5307287869).

43243032131 is a wasteful number, since it uses less digits than its factorization.

43243032131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 43243032131 its reverse (13123034234), we get a palindrome (56366066365).

The spelling of 43243032131 in words is "forty-three billion, two hundred forty-three million, thirty-two thousand, one hundred thirty-one".