20313106651031 has 8 divisors (see below), whose sum is σ = 20732241775824. Its totient is φ = 19895300006400.

The previous prime is 20313106650919. The next prime is 20313106651037. The reversal of 20313106651031 is 13015660131302.

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-20313106651031 is a prime.

It is a super-2 number, since 2×20313106651031² (a number of 27 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 (20313106651037) 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, 332089145 + ... + 332150306.

It is an arithmetic number, because the mean of its divisors is an integer number (2591530221978).

Almost surely, 2^{20313106651031} is an apocalyptic number.

20313106651031 is a deficient number, since it is larger than the sum of its proper divisors (419135124793).

20313106651031 is an equidigital number, since it uses as much as digits as its factorization.

20313106651031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664240081.

The product of its (nonzero) digits is 9720, while the sum is 32.

Adding to 20313106651031 its reverse (13015660131302), we get a palindrome (33328766782333).

The spelling of 20313106651031 in words is "twenty trillion, three hundred thirteen billion, one hundred six million, six hundred fifty-one thousand, thirty-one".