100420636441 has 2 divisors, whose sum is σ = 100420636442. Its totient is φ = 100420636440.

The previous prime is 100420636411. The next prime is 100420636507. The reversal of 100420636441 is 144636024001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84750854400 + 15669782041 = 291120^2 + 125179^2 .

It is a cyclic number.

It is not a de Polignac number, because 100420636441 - 2⁹ = 100420635929 is a prime.

It is not a weakly prime, because it can be changed into another prime (100420636411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50210318220 + 50210318221.

It is an arithmetic number, because the mean of its divisors is an integer number (50210318221).

Almost surely, 2^100420636441 is an apocalyptic number.

It is an amenable number.

100420636441 is a deficient number, since it is larger than the sum of its proper divisors (1).

100420636441 is an equidigital number, since it uses as much as digits as its factorization.

100420636441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 100420636441 in words is "one hundred billion, four hundred twenty million, six hundred thirty-six thousand, four hundred forty-one".