20484917131 has 8 divisors (see below), whose sum is σ = 23532637664. Its totient is φ = 17467522560.

The previous prime is 20484917129. The next prime is 20484917143. The reversal of 20484917131 is 13171948402.

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 20484917131 - 2¹ = 20484917129 is a prime.

It is a super-2 number, since 2×20484917131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20484957131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7580040 + ... + 7582741.

It is an arithmetic number, because the mean of its divisors is an integer number (2941579708).

Almost surely, 2^20484917131 is an apocalyptic number.

20484917131 is a deficient number, since it is larger than the sum of its proper divisors (3047720533).

20484917131 is a wasteful number, since it uses less digits than its factorization.

20484917131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15162981.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 20484917131 in words is "twenty billion, four hundred eighty-four million, nine hundred seventeen thousand, one hundred thirty-one".