43112030413421 has 2 divisors, whose sum is σ = 43112030413422. Its totient is φ = 43112030413420.

The previous prime is 43112030413411. The next prime is 43112030413427. The reversal of 43112030413421 is 12431403021134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28195356604900 + 14916673808521 = 5309930^2 + 3862211^2 .

It is a cyclic number.

It is not a de Polignac number, because 43112030413421 - 2¹⁰ = 43112030412397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43112030413427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21556015206710 + 21556015206711.

It is an arithmetic number, because the mean of its divisors is an integer number (21556015206711).

Almost surely, 2^{43112030413421} is an apocalyptic number.

It is an amenable number.

43112030413421 is a deficient number, since it is larger than the sum of its proper divisors (1).

43112030413421 is an equidigital number, since it uses as much as digits as its factorization.

43112030413421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 43112030413421 its reverse (12431403021134), we get a palindrome (55543433434555).

The spelling of 43112030413421 in words is "forty-three trillion, one hundred twelve billion, thirty million, four hundred thirteen thousand, four hundred twenty-one".