100420511069 has 2 divisors, whose sum is σ = 100420511070. Its totient is φ = 100420511068.

The previous prime is 100420511053. The next prime is 100420511111. The reversal of 100420511069 is 960115024001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90222136900 + 10198374169 = 300370^2 + 100987^2 .

It is a cyclic number.

It is not a de Polignac number, because 100420511069 - 2⁴ = 100420511053 is a prime.

It is a super-2 number, since 2×100420511069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100420511029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50210255534 + 50210255535.

It is an arithmetic number, because the mean of its divisors is an integer number (50210255535).

Almost surely, 2^100420511069 is an apocalyptic number.

It is an amenable number.

100420511069 is a deficient number, since it is larger than the sum of its proper divisors (1).

100420511069 is an equidigital number, since it uses as much as digits as its factorization.

100420511069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 100420511069 in words is "one hundred billion, four hundred twenty million, five hundred eleven thousand, sixty-nine".