20023037 has 2 divisors, whose sum is σ = 20023038. Its totient is φ = 20023036.

The previous prime is 20023027. The next prime is 20023039. The reversal of 20023037 is 73032002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19971961 + 51076 = 4469^2 + 226^2 .

It is a cyclic number.

It is not a de Polignac number, because 20023037 - 2¹² = 20018941 is a prime.

Together with 20023039, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20023039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011518 + 10011519.

It is an arithmetic number, because the mean of its divisors is an integer number (10011519).

Almost surely, 2^20023037 is an apocalyptic number.

It is an amenable number.

20023037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023037 is an equidigital number, since it uses as much as digits as its factorization.

20023037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 20023037 is about 4474.7108286458. The cubic root of 20023037 is about 271.5459417342.

Adding to 20023037 its reverse (73032002), we get a palindrome (93055039).

The spelling of 20023037 in words is "twenty million, twenty-three thousand, thirty-seven".