20240031 has 8 divisors (see below), whose sum is σ = 30841984. Its totient is φ = 11565720.

The previous prime is 20240021. The next prime is 20240071. The reversal of 20240031 is 13004202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20240031 - 2¹³ = 20231839 is a prime.

It is a super-2 number, since 2×20240031² = 819317709761922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20239989 and 20240016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20240021) 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, 481885 + ... + 481926.

It is an arithmetic number, because the mean of its divisors is an integer number (3855248).

Almost surely, 2^20240031 is an apocalyptic number.

20240031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20240031 is a deficient number, since it is larger than the sum of its proper divisors (10601953).

20240031 is an equidigital number, since it uses as much as digits as its factorization.

20240031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963821.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20240031 is about 4498.8921969747. The cubic root of 20240031 is about 272.5233534961.

Adding to 20240031 its reverse (13004202), we get a palindrome (33244233).

The spelling of 20240031 in words is "twenty million, two hundred forty thousand, thirty-one".