100423041213427 has 2 divisors, whose sum is σ = 100423041213428. Its totient is φ = 100423041213426.

The previous prime is 100423041213409. The next prime is 100423041213457. The reversal of 100423041213427 is 724312140324001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100423041213427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100423041213392 and 100423041213401.

It is not a weakly prime, because it can be changed into another prime (100423041213457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50211520606713 + 50211520606714.

It is an arithmetic number, because the mean of its divisors is an integer number (50211520606714).

Almost surely, 2^{100423041213427} is an apocalyptic number.

100423041213427 is a deficient number, since it is larger than the sum of its proper divisors (1).

100423041213427 is an equidigital number, since it uses as much as digits as its factorization.

100423041213427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 34.

Adding to 100423041213427 its reverse (724312140324001), we get a palindrome (824735181537428).

The spelling of 100423041213427 in words is "one hundred trillion, four hundred twenty-three billion, forty-one million, two hundred thirteen thousand, four hundred twenty-seven".