20320632363131 has 8 divisors (see below), whose sum is σ = 20527820078304. Its totient is φ = 20114428913280.

The previous prime is 20320632363089. The next prime is 20320632363173. The reversal of 20320632363131 is 13136323602302.

It is an interprime number because it is at equal distance from previous prime (20320632363089) and next prime (20320632363173).

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-20320632363131 is a prime.

It is a super-2 number, since 2×20320632363131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20320632363091 and 20320632363100.

It is not an unprimeable number, because it can be changed into a prime (20320632363181) 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, 246024830 + ... + 246107411.

It is an arithmetic number, because the mean of its divisors is an integer number (2565977509788).

Almost surely, 2^{20320632363131} is an apocalyptic number.

20320632363131 is a deficient number, since it is larger than the sum of its proper divisors (207187715173).

20320632363131 is a wasteful number, since it uses less digits than its factorization.

20320632363131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492132661.

The product of its (nonzero) digits is 69984, while the sum is 35.

Adding to 20320632363131 its reverse (13136323602302), we get a palindrome (33456955965433).

The spelling of 20320632363131 in words is "twenty trillion, three hundred twenty billion, six hundred thirty-two million, three hundred sixty-three thousand, one hundred thirty-one".