20413121306 has 8 divisors (see below), whose sum is σ = 30718138464. Its totient is φ = 10173741820.

The previous prime is 20413121303. The next prime is 20413121329. The reversal of 20413121306 is 60312131402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20413121306² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 16408640 + ... + 16409883.

It is an arithmetic number, because the mean of its divisors is an integer number (3839767308).

Almost surely, 2^20413121306 is an apocalyptic number.

20413121306 is a deficient number, since it is larger than the sum of its proper divisors (10305017158).

20413121306 is a wasteful number, since it uses less digits than its factorization.

20413121306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32818836.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20413121306 its reverse (60312131402), we get a palindrome (80725252708).

The spelling of 20413121306 in words is "twenty billion, four hundred thirteen million, one hundred twenty-one thousand, three hundred six".