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20124031 is a prime number
BaseRepresentation
bin100110011000…
…1000101111111
31101212101222111
41030301011333
520122432111
61555154451
7333023434
oct114610577
941771874
1020124031
11103a5534
1268a5a27
134227a15
14295bb8b
151b77a21
hex133117f

20124031 has 2 divisors, whose sum is σ = 20124032. Its totient is φ = 20124030.

The previous prime is 20124023. The next prime is 20124079. The reversal of 20124031 is 13042102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20124031 - 23 = 20124023 is a prime.

It is a super-2 number, since 2×201240312 = 809953247377922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20124331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062015 + 10062016.

It is an arithmetic number, because the mean of its divisors is an integer number (10062016).

Almost surely, 220124031 is an apocalyptic number.

20124031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20124031 is an equidigital number, since it uses as much as digits as its factorization.

20124031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20124031 is about 4485.9816094139. The cubic root of 20124031 is about 272.0017255874.

Adding to 20124031 its reverse (13042102), we get a palindrome (33166133).

The spelling of 20124031 in words is "twenty million, one hundred twenty-four thousand, thirty-one".