20301694631 has 8 divisors (see below), whose sum is σ = 20673792000. Its totient is φ = 19931990680.

The previous prime is 20301694597. The next prime is 20301694639. The reversal of 20301694631 is 13649610302.

It is a happy number.

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-20301694631 is a prime.

It is a super-2 number, since 2×20301694631² (a number of 21 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 = 20301694591 and 20301694600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301694639) by changing a digit.

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, 581231 + ... + 615168.

It is an arithmetic number, because the mean of its divisors is an integer number (2584224000).

Almost surely, 2^20301694631 is an apocalyptic number.

20301694631 is a deficient number, since it is larger than the sum of its proper divisors (372097369).

20301694631 is a wasteful number, since it uses less digits than its factorization.

20301694631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196709.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 20301694631 in words is "twenty billion, three hundred one million, six hundred ninety-four thousand, six hundred thirty-one".