34531440421 has 2 divisors, whose sum is σ = 34531440422. Its totient is φ = 34531440420.

The previous prime is 34531440397. The next prime is 34531440479. The reversal of 34531440421 is 12404413543.

34531440421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34530930625 + 509796 = 185825^2 + 714^2 .

It is an emirp because it is prime and its reverse (12404413543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34531440421 - 2¹¹ = 34531438373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34531440481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17265720210 + 17265720211.

It is an arithmetic number, because the mean of its divisors is an integer number (17265720211).

Almost surely, 2^34531440421 is an apocalyptic number.

It is an amenable number.

34531440421 is a deficient number, since it is larger than the sum of its proper divisors (1).

34531440421 is an equidigital number, since it uses as much as digits as its factorization.

34531440421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 34531440421 its reverse (12404413543), we get a palindrome (46935853964).

The spelling of 34531440421 in words is "thirty-four billion, five hundred thirty-one million, four hundred forty thousand, four hundred twenty-one".