20413121308 has 24 divisors (see below), whose sum is σ = 35864469648. Its totient is φ = 10166169216.

The previous prime is 20413121303. The next prime is 20413121329. The reversal of 20413121308 is 80312131402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413121303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2894835 + ... + 2901877.

It is an arithmetic number, because the mean of its divisors is an integer number (1494352902).

Almost surely, 2^20413121308 is an apocalyptic number.

It is an amenable number.

20413121308 is a deficient number, since it is larger than the sum of its proper divisors (15451348340).

20413121308 is a wasteful number, since it uses less digits than its factorization.

20413121308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9813 (or 9811 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 20413121308 in words is "twenty billion, four hundred thirteen million, one hundred twenty-one thousand, three hundred eight".