20311413005 has 8 divisors (see below), whose sum is σ = 26248595352. Its totient is φ = 14999197248.

The previous prime is 20311412951. The next prime is 20311413029. The reversal of 20311413005 is 50031411302.

It can be written as a sum of positive squares in 4 ways, for example, as 28526281 + 20282886724 = 5341^2 + 142418^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20311413005 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156241574 + ... + 156241703.

It is an arithmetic number, because the mean of its divisors is an integer number (3281074419).

Almost surely, 2^20311413005 is an apocalyptic number.

It is an amenable number.

20311413005 is a deficient number, since it is larger than the sum of its proper divisors (5937182347).

20311413005 is a wasteful number, since it uses less digits than its factorization.

20311413005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312483295.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 20311413005 its reverse (50031411302), we get a palindrome (70342824307).

The spelling of 20311413005 in words is "twenty billion, three hundred eleven million, four hundred thirteen thousand, five".