123001552132 has 6 divisors (see below), whose sum is σ = 215252716238. Its totient is φ = 61500776064.

The previous prime is 123001552129. The next prime is 123001552139. The reversal of 123001552132 is 231255100321.

It can be written as a sum of positive squares in only one way, i.e., 120836883456 + 2164668676 = 347616^2 + 46526^2 .

It is a super-2 number, since 2×123001552132² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123001552097 and 123001552106.

It is not an unprimeable number, because it can be changed into a prime (123001552139) 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 as a sum of consecutive naturals, namely, 15375194013 + ... + 15375194020.

Almost surely, 2^123001552132 is an apocalyptic number.

It is an amenable number.

123001552132 is a deficient number, since it is larger than the sum of its proper divisors (92251164106).

123001552132 is a wasteful number, since it uses less digits than its factorization.

123001552132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30750388037 (or 30750388035 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 123001552132 its reverse (231255100321), we get a palindrome (354256652453).

The spelling of 123001552132 in words is "one hundred twenty-three billion, one million, five hundred fifty-two thousand, one hundred thirty-two".