10400321497 has 2 divisors, whose sum is σ = 10400321498. Its totient is φ = 10400321496.

The previous prime is 10400321483. The next prime is 10400321513. The reversal of 10400321497 is 79412300401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10400124361 + 197136 = 101981^2 + 444^2 .

It is a cyclic number.

It is not a de Polignac number, because 10400321497 - 2⁷ = 10400321369 is a prime.

It is not a weakly prime, because it can be changed into another prime (10400321297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200160748 + 5200160749.

It is an arithmetic number, because the mean of its divisors is an integer number (5200160749).

Almost surely, 2^10400321497 is an apocalyptic number.

It is an amenable number.

10400321497 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400321497 is an equidigital number, since it uses as much as digits as its factorization.

10400321497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

Adding to 10400321497 its reverse (79412300401), we get a palindrome (89812621898).

The spelling of 10400321497 in words is "ten billion, four hundred million, three hundred twenty-one thousand, four hundred ninety-seven".