20013023413 has 8 divisors (see below), whose sum is σ = 20223748440. Its totient is φ = 19802388480.

The previous prime is 20013023363. The next prime is 20013023417. The reversal of 20013023413 is 31432031002.

It can be written as a sum of positive squares in 4 ways, for example, as 1474022449 + 18539000964 = 38393^2 + 136158^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20013023413 - 2⁹ = 20013022901 is a prime.

It is a super-2 number, since 2×20013023413² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013023417) 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, 483453 + ... + 523213.

It is an arithmetic number, because the mean of its divisors is an integer number (2527968555).

Almost surely, 2^20013023413 is an apocalyptic number.

It is an amenable number.

20013023413 is a deficient number, since it is larger than the sum of its proper divisors (210725027).

20013023413 is an equidigital number, since it uses as much as digits as its factorization.

20013023413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45047.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20013023413 its reverse (31432031002), we get a palindrome (51445054415).

The spelling of 20013023413 in words is "twenty billion, thirteen million, twenty-three thousand, four hundred thirteen".