123354421026 has 32 divisors (see below), whose sum is σ = 247840448640. Its totient is φ = 40929618816.

The previous prime is 123354421019. The next prime is 123354421033. The reversal of 123354421026 is 620124453321.

It is an interprime number because it is at equal distance from previous prime (123354421019) and next prime (123354421033).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9896190 + ... + 9908646.

It is an arithmetic number, because the mean of its divisors is an integer number (7745014020).

Almost surely, 2^123354421026 is an apocalyptic number.

123354421026 is an abundant number, since it is smaller than the sum of its proper divisors (124486027614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123354421026 is a wasteful number, since it uses less digits than its factorization.

123354421026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19898.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 123354421026 its reverse (620124453321), we get a palindrome (743478874347).

The spelling of 123354421026 in words is "one hundred twenty-three billion, three hundred fifty-four million, four hundred twenty-one thousand, twenty-six".