123430526211 has 4 divisors (see below), whose sum is σ = 164574034952. Its totient is φ = 82287017472.

The previous prime is 123430526201. The next prime is 123430526221. The reversal of 123430526211 is 112625034321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112625034321 = 3 ⋅37541678107.

It is an interprime number because it is at equal distance from previous prime (123430526201) and next prime (123430526221).

It is not a de Polignac number, because 123430526211 - 2⁷ = 123430526083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123430526201) 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 3 ways as a sum of consecutive naturals, for example, 20571754366 + ... + 20571754371.

It is an arithmetic number, because the mean of its divisors is an integer number (41143508738).

Almost surely, 2^123430526211 is an apocalyptic number.

123430526211 is a deficient number, since it is larger than the sum of its proper divisors (41143508741).

123430526211 is an equidigital number, since it uses as much as digits as its factorization.

123430526211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41143508740.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 123430526211 in words is "one hundred twenty-three billion, four hundred thirty million, five hundred twenty-six thousand, two hundred eleven".