20413413243 has 12 divisors (see below), whose sum is σ = 29513181568. Its totient is φ = 13596415920.

The previous prime is 20413413193. The next prime is 20413413247. The reversal of 20413413243 is 34231431402.

20413413243 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 3 + 413 + 243 = 666.

It is not a de Polignac number, because 20413413243 - 2⁹ = 20413412731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20413413247) 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, 1033528 + ... + 1053093.

Almost surely, 2^20413413243 is an apocalyptic number.

20413413243 is a deficient number, since it is larger than the sum of its proper divisors (9099768325).

20413413243 is a wasteful number, since it uses less digits than its factorization.

20413413243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087714 (or 2087711 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20413413243 its reverse (34231431402), we get a palindrome (54644844645).

The spelling of 20413413243 in words is "twenty billion, four hundred thirteen million, four hundred thirteen thousand, two hundred forty-three".