122555303112531 has 4 divisors (see below), whose sum is σ = 163407070816712. Its totient is φ = 81703535408352.

The previous prime is 122555303112523. The next prime is 122555303112601. The reversal of 122555303112531 is 135211303555221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 122555303112531 - 2³ = 122555303112523 is a prime.

It is a super-2 number, since 2×122555303112531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122555303112531.

It is not an unprimeable number, because it can be changed into a prime (122555303110531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20425883852086 + ... + 20425883852091.

It is an arithmetic number, because the mean of its divisors is an integer number (40851767704178).

Almost surely, 2^{122555303112531} is an apocalyptic number.

122555303112531 is a deficient number, since it is larger than the sum of its proper divisors (40851767704181).

122555303112531 is an equidigital number, since it uses as much as digits as its factorization.

122555303112531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40851767704180.

The product of its (nonzero) digits is 135000, while the sum is 39.

Adding to 122555303112531 its reverse (135211303555221), we get a palindrome (257766606667752).

The spelling of 122555303112531 in words is "one hundred twenty-two trillion, five hundred fifty-five billion, three hundred three million, one hundred twelve thousand, five hundred thirty-one".