101326404497 has 2 divisors, whose sum is σ = 101326404498. Its totient is φ = 101326404496.

The previous prime is 101326404493. The next prime is 101326404511. The reversal of 101326404497 is 794404623101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80313292816 + 21013111681 = 283396^2 + 144959^2 .

It is a cyclic number.

It is not a de Polignac number, because 101326404497 - 2² = 101326404493 is a prime.

It is not a weakly prime, because it can be changed into another prime (101326404493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50663202248 + 50663202249.

It is an arithmetic number, because the mean of its divisors is an integer number (50663202249).

Almost surely, 2^101326404497 is an apocalyptic number.

It is an amenable number.

101326404497 is a deficient number, since it is larger than the sum of its proper divisors (1).

101326404497 is an equidigital number, since it uses as much as digits as its factorization.

101326404497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 101326404497 in words is "one hundred one billion, three hundred twenty-six million, four hundred four thousand, four hundred ninety-seven".