123354211051 has 4 divisors (see below), whose sum is σ = 123379920000. Its totient is φ = 123328502104.

The previous prime is 123354210971. The next prime is 123354211067. The reversal of 123354211051 is 150112453321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123354211051 - 2³⁵ = 88994472683 is a prime.

It is a super-2 number, since 2×123354211051² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123354211091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12847276 + ... + 12856873.

It is an arithmetic number, because the mean of its divisors is an integer number (30844980000).

Almost surely, 2^123354211051 is an apocalyptic number.

123354211051 is a deficient number, since it is larger than the sum of its proper divisors (25708949).

123354211051 is an equidigital number, since it uses as much as digits as its factorization.

123354211051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25708948.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 123354211051 its reverse (150112453321), we get a palindrome (273466664372).

The spelling of 123354211051 in words is "one hundred twenty-three billion, three hundred fifty-four million, two hundred eleven thousand, fifty-one".