22302031 has 2 divisors, whose sum is σ = 22302032. Its totient is φ = 22302030.

The previous prime is 22302013. The next prime is 22302041. The reversal of 22302031 is 13020322.

It is a happy number.

Together with previous prime (22302013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22302031 - 2¹⁷ = 22170959 is a prime.

It is a super-2 number, since 2×22302031² = 994761173449922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22302041) 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, 11151015 + 11151016.

It is an arithmetic number, because the mean of its divisors is an integer number (11151016).

Almost surely, 2^22302031 is an apocalyptic number.

22302031 is a deficient number, since it is larger than the sum of its proper divisors (1).

22302031 is an equidigital number, since it uses as much as digits as its factorization.

22302031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 22302031 is about 4722.5026204334. The cubic root of 22302031 is about 281.4803863054.

Adding to 22302031 its reverse (13020322), we get a palindrome (35322353).

The spelling of 22302031 in words is "twenty-two million, three hundred two thousand, thirty-one".