20351631651103 has 8 divisors (see below), whose sum is σ = 20848129124256. Its totient is φ = 19855139712000.

The previous prime is 20351631651077. The next prime is 20351631651161. The reversal of 20351631651103 is 30115613615302.

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 20351631651103 - 2²⁵ = 20351598096671 is a prime.

It is a super-2 number, since 2×20351631651103² (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 (20351631621103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6619078 + ... + 9193228.

It is an arithmetic number, because the mean of its divisors is an integer number (2606016140532).

Almost surely, 2^{20351631651103} is an apocalyptic number.

20351631651103 is a deficient number, since it is larger than the sum of its proper divisors (496497473153).

20351631651103 is a wasteful number, since it uses less digits than its factorization.

20351631651103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767025.

The product of its (nonzero) digits is 48600, while the sum is 37.

The spelling of 20351631651103 in words is "twenty trillion, three hundred fifty-one billion, six hundred thirty-one million, six hundred fifty-one thousand, one hundred three".