43142220431 has 4 divisors (see below), whose sum is σ = 43143476112. Its totient is φ = 43140964752.

The previous prime is 43142220413. The next prime is 43142220449. The reversal of 43142220431 is 13402224134.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (43142220413) and next prime (43142220449).

It is a cyclic number.

It is not a de Polignac number, because 43142220431 - 2⁶ = 43142220367 is a prime.

It is a super-2 number, since 2×43142220431² (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 43142220431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43142220131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574811 + ... + 645516.

It is an arithmetic number, because the mean of its divisors is an integer number (10785869028).

Almost surely, 2^43142220431 is an apocalyptic number.

43142220431 is a deficient number, since it is larger than the sum of its proper divisors (1255681).

43142220431 is a wasteful number, since it uses less digits than its factorization.

43142220431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255680.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 43142220431 its reverse (13402224134), we get a palindrome (56544444565).

The spelling of 43142220431 in words is "forty-three billion, one hundred forty-two million, two hundred twenty thousand, four hundred thirty-one".