123200012132 has 24 divisors (see below), whose sum is σ = 215835331320. Its totient is φ = 61532817920.

The previous prime is 123200012119. The next prime is 123200012153. The reversal of 123200012132 is 231210002321.

It can be written as a sum of positive squares in 4 ways, for example, as 10125189376 + 113074822756 = 100624^2 + 336266^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123200012132.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19800782 + ... + 19807002.

It is an arithmetic number, because the mean of its divisors is an integer number (8993138805).

Almost surely, 2^123200012132 is an apocalyptic number.

It is an amenable number.

123200012132 is a deficient number, since it is larger than the sum of its proper divisors (92635319188).

123200012132 is a wasteful number, since it uses less digits than its factorization.

123200012132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10831 (or 10829 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 123200012132 its reverse (231210002321), we get a palindrome (354410014453).

The spelling of 123200012132 in words is "one hundred twenty-three billion, two hundred million, twelve thousand, one hundred thirty-two".