20114531 has 2 divisors, whose sum is σ = 20114532. Its totient is φ = 20114530.

The previous prime is 20114527. The next prime is 20114557. The reversal of 20114531 is 13541102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20114531 - 2² = 20114527 is a prime.

It is a super-2 number, since 2×20114531² = 809188714699922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20114131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10057265 + 10057266.

It is an arithmetic number, because the mean of its divisors is an integer number (10057266).

Almost surely, 2^20114531 is an apocalyptic number.

20114531 is a deficient number, since it is larger than the sum of its proper divisors (1).

20114531 is an equidigital number, since it uses as much as digits as its factorization.

20114531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 20114531 is about 4484.9226303249. The cubic root of 20114531 is about 271.9589173463.

Adding to 20114531 its reverse (13541102), we get a palindrome (33655633).

The spelling of 20114531 in words is "twenty million, one hundred fourteen thousand, five hundred thirty-one".