22401031 has 2 divisors, whose sum is σ = 22401032. Its totient is φ = 22401030.

The previous prime is 22401023. The next prime is 22401037. The reversal of 22401031 is 13010422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22401031 - 2³ = 22401023 is a prime.

It is a super-2 number, since 2×22401031² = 1003612379725922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22401037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11200515 + 11200516.

It is an arithmetic number, because the mean of its divisors is an integer number (11200516).

Almost surely, 2^22401031 is an apocalyptic number.

22401031 is a deficient number, since it is larger than the sum of its proper divisors (1).

22401031 is an equidigital number, since it uses as much as digits as its factorization.

22401031 is an odious number, because the sum of its binary digits is odd.

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

The square root of 22401031 is about 4732.9727444810. The cubic root of 22401031 is about 281.8962740764.

Adding to 22401031 its reverse (13010422), we get a palindrome (35411453).

The spelling of 22401031 in words is "twenty-two million, four hundred one thousand, thirty-one".