100420266261 has 12 divisors (see below), whose sum is σ = 155753882592. Its totient is φ = 57383009208.

The previous prime is 100420266251. The next prime is 100420266293. The reversal of 100420266261 is 162662024001.

It is not a de Polignac number, because 100420266261 - 2⁶ = 100420266197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100420266241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 341565385 + ... + 341565678.

It is an arithmetic number, because the mean of its divisors is an integer number (12979490216).

Almost surely, 2^100420266261 is an apocalyptic number.

It is an amenable number.

100420266261 is a deficient number, since it is larger than the sum of its proper divisors (55333616331).

100420266261 is an equidigital number, since it uses as much as digits as its factorization.

100420266261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683131080 (or 683131073 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 100420266261 in words is "one hundred billion, four hundred twenty million, two hundred sixty-six thousand, two hundred sixty-one".