20434330413 has 12 divisors (see below), whose sum is σ = 33732863008. Its totient is φ = 11676760200.

The previous prime is 20434330409. The next prime is 20434330421. The reversal of 20434330413 is 31403343402.

20434330413 is a `hidden beast` number, since 2 + 0 + 4 + 343 + 304 + 13 = 666.

It is not a de Polignac number, because 20434330413 - 2² = 20434330409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20434330453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162177163 + ... + 162177288.

Almost surely, 2^20434330413 is an apocalyptic number.

It is an amenable number.

20434330413 is a deficient number, since it is larger than the sum of its proper divisors (13298532595).

20434330413 is a wasteful number, since it uses less digits than its factorization.

20434330413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324354464 (or 324354461 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 20434330413 its reverse (31403343402), we get a palindrome (51837673815).

The spelling of 20434330413 in words is "twenty billion, four hundred thirty-four million, three hundred thirty thousand, four hundred thirteen".