23063531 has 2 divisors, whose sum is σ = 23063532. Its totient is φ = 23063530.

The previous prime is 23063527. The next prime is 23063567. The reversal of 23063531 is 13536032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23063531 - 2² = 23063527 is a prime.

It is a super-2 number, since 2×23063531² = 1063852924375922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23063497 and 23063506.

It is not a weakly prime, because it can be changed into another prime (23063501) 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 as a sum of consecutive naturals, namely, 11531765 + 11531766.

It is an arithmetic number, because the mean of its divisors is an integer number (11531766).

Almost surely, 2^23063531 is an apocalyptic number.

23063531 is a deficient number, since it is larger than the sum of its proper divisors (1).

23063531 is an equidigital number, since it uses as much as digits as its factorization.

23063531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 23063531 is about 4802.4505203073. The cubic root of 23063531 is about 284.6483032236.

Adding to 23063531 its reverse (13536032), we get a palindrome (36599563).

The spelling of 23063531 in words is "twenty-three million, sixty-three thousand, five hundred thirty-one".