10403323391 has 2 divisors, whose sum is σ = 10403323392. Its totient is φ = 10403323390.

The previous prime is 10403323369. The next prime is 10403323409. The reversal of 10403323391 is 19332330401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10403323391 - 2³⁰ = 9329581567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10403323321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5201661695 + 5201661696.

It is an arithmetic number, because the mean of its divisors is an integer number (5201661696).

Almost surely, 2^10403323391 is an apocalyptic number.

10403323391 is a deficient number, since it is larger than the sum of its proper divisors (1).

10403323391 is an equidigital number, since it uses as much as digits as its factorization.

10403323391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 10403323391 its reverse (19332330401), we get a palindrome (29735653792).

The spelling of 10403323391 in words is "ten billion, four hundred three million, three hundred twenty-three thousand, three hundred ninety-one".