122513312 has 48 divisors (see below), whose sum is σ = 246395520. Its totient is φ = 59953152.

The previous prime is 122513299. The next prime is 122513329. The reversal of 122513312 is 213315221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512489 + ... + 512727.

It is an arithmetic number, because the mean of its divisors is an integer number (5133240).

Almost surely, 2^122513312 is an apocalyptic number.

It is an amenable number.

122513312 is an abundant number, since it is smaller than the sum of its proper divisors (123882208).

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

122513312 is a wasteful number, since it uses less digits than its factorization.

122513312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 517 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 122513312 is about 11068.5731691126. The cubic root of 122513312 is about 496.6621835449.

Adding to 122513312 its reverse (213315221), we get a palindrome (335828533).

The spelling of 122513312 in words is "one hundred twenty-two million, five hundred thirteen thousand, three hundred twelve".