123200532315 has 144 divisors (see below), whose sum is σ = 250441970688. Its totient is φ = 54870480000.

The previous prime is 123200532313. The next prime is 123200532341. The reversal of 123200532315 is 513235002321.

It is a happy number.

123200532315 is a `hidden beast` number, since 1 + 2 + 320 + 0 + 5 + 323 + 15 = 666.

It is not a de Polignac number, because 123200532315 - 2¹ = 123200532313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123200532313) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 645028870 + ... + 645029060.

It is an arithmetic number, because the mean of its divisors is an integer number (1739180352).

Almost surely, 2^123200532315 is an apocalyptic number.

123200532315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123200532315 is an abundant number, since it is smaller than the sum of its proper divisors (127241438373).

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

123200532315 is a wasteful number, since it uses less digits than its factorization.

123200532315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 123200532315 its reverse (513235002321), we get a palindrome (636435534636).

The spelling of 123200532315 in words is "one hundred twenty-three billion, two hundred million, five hundred thirty-two thousand, three hundred fifteen".