123222431115 has 64 divisors (see below), whose sum is σ = 261241804800. Its totient is φ = 53881103232.

The previous prime is 123222431107. The next prime is 123222431131. The reversal of 123222431115 is 511134222321.

It is a happy number.

123222431115 is a `hidden beast` number, since 1 + 2 + 3 + 222 + 431 + 1 + 1 + 5 = 666.

It is not a de Polignac number, because 123222431115 - 2³ = 123222431107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2812920 + ... + 2856389.

It is an arithmetic number, because the mean of its divisors is an integer number (4081903200).

Almost surely, 2^123222431115 is an apocalyptic number.

123222431115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123222431115 is an abundant number, since it is smaller than the sum of its proper divisors (138019373685).

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

123222431115 is a wasteful number, since it uses less digits than its factorization.

123222431115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5669353 (or 5669347 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

Adding to 123222431115 its reverse (511134222321), we get a palindrome (634356653436).

The spelling of 123222431115 in words is "one hundred twenty-three billion, two hundred twenty-two million, four hundred thirty-one thousand, one hundred fifteen".