43030123031 has 4 divisors (see below), whose sum is σ = 49177283472. Its totient is φ = 36882962592.

The previous prime is 43030123027. The next prime is 43030123057. The reversal of 43030123031 is 13032103034.

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

It is not a de Polignac number, because 43030123031 - 2² = 43030123027 is a prime.

It is a super-2 number, since 2×43030123031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43030122994 and 43030123012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43030123831) 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, 3073580210 + ... + 3073580223.

It is an arithmetic number, because the mean of its divisors is an integer number (12294320868).

Almost surely, 2^43030123031 is an apocalyptic number.

43030123031 is a deficient number, since it is larger than the sum of its proper divisors (6147160441).

43030123031 is an equidigital number, since it uses as much as digits as its factorization.

43030123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6147160440.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 43030123031 its reverse (13032103034), we get a palindrome (56062226065).

The spelling of 43030123031 in words is "forty-three billion, thirty million, one hundred twenty-three thousand, thirty-one".