10402031 has 2 divisors, whose sum is σ = 10402032. Its totient is φ = 10402030.

The previous prime is 10401973. The next prime is 10402033. The reversal of 10402031 is 13020401.

It is a happy number.

10402031 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 10402031 - 2²² = 6207727 is a prime.

It is a super-2 number, since 2×10402031² = 216404497849922, which contains 22 as substring.

Together with 10402033, 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 (10402033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5201015 + 5201016.

It is an arithmetic number, because the mean of its divisors is an integer number (5201016).

Almost surely, 2^10402031 is an apocalyptic number.

10402031 is a deficient number, since it is larger than the sum of its proper divisors (1).

10402031 is an equidigital number, since it uses as much as digits as its factorization.

10402031 is an evil number, because the sum of its binary digits is even.

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

The square root of 10402031 is about 3225.2179771296. The cubic root of 10402031 is about 218.2927847832.

Adding to 10402031 its reverse (13020401), we get a palindrome (23422432).

The spelling of 10402031 in words is "ten million, four hundred two thousand, thirty-one".