10400231 has 2 divisors, whose sum is σ = 10400232. Its totient is φ = 10400230.

The previous prime is 10400189. The next prime is 10400249. The reversal of 10400231 is 13200401.

It is a happy number.

10400231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10400231 - 2¹⁸ = 10138087 is a prime.

It is a super-2 number, since 2×10400231² = 216329609706722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10400261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200115 + 5200116.

It is an arithmetic number, because the mean of its divisors is an integer number (5200116).

Almost surely, 2^10400231 is an apocalyptic number.

10400231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400231 is an equidigital number, since it uses as much as digits as its factorization.

10400231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 10400231 is about 3224.9389141502. The cubic root of 10400231 is about 218.2801927013.

Adding to 10400231 its reverse (13200401), we get a palindrome (23600632).

The spelling of 10400231 in words is "ten million, four hundred thousand, two hundred thirty-one".