123555052133 has 12 divisors (see below), whose sum is σ = 128799197964. Its totient is φ = 118511164800.

The previous prime is 123555052129. The next prime is 123555052151. The reversal of 123555052133 is 331250555321.

It can be written as a sum of positive squares in 2 ways, for example, as 3909625729 + 119645426404 = 62527^2 + 345898^2 .

It is not a de Polignac number, because 123555052133 - 2² = 123555052129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123555052093 and 123555052102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123555052163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 460298 + ... + 677483.

It is an arithmetic number, because the mean of its divisors is an integer number (10733266497).

Almost surely, 2^123555052133 is an apocalyptic number.

It is an amenable number.

123555052133 is a deficient number, since it is larger than the sum of its proper divisors (5244145831).

123555052133 is a wasteful number, since it uses less digits than its factorization.

123555052133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137956 (or 1137925 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 35.

The spelling of 123555052133 in words is "one hundred twenty-three billion, five hundred fifty-five million, fifty-two thousand, one hundred thirty-three".