20312113321001 has 8 divisors (see below), whose sum is σ = 21590628126120. Its totient is φ = 19042896805888.

The previous prime is 20312113320953. The next prime is 20312113321043. The reversal of 20312113321001 is 10012331121302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12418935450601 + 7893177870400 = 3524051^2 + 2809480^2 .

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 20312113321001 - 2³⁴ = 20294933451817 is a prime.

It is a super-3 number, since 3×20312113321001³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20312113321601) 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, 2324567996 + ... + 2324576733.

It is an arithmetic number, because the mean of its divisors is an integer number (2698828515765).

Almost surely, 2^{20312113321001} is an apocalyptic number.

It is an amenable number.

20312113321001 is a deficient number, since it is larger than the sum of its proper divisors (1278514805119).

20312113321001 is a wasteful number, since it uses less digits than its factorization.

20312113321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4649145003.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20312113321001 its reverse (10012331121302), we get a palindrome (30324444442303).

The spelling of 20312113321001 in words is "twenty trillion, three hundred twelve billion, one hundred thirteen million, three hundred twenty-one thousand, one".