123022055025 has 81 divisors (see below), whose sum is σ = 224326769121. Its totient is φ = 64447289280.

The previous prime is 123022055011. The next prime is 123022055087. The reversal of 123022055025 is 520550220321.

The square root of 123022055025 is 350745.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1265722929 + 121756332096 = 35577^2 + 348936^2 .

It is a de Polignac number, because none of the positive numbers 2^k-123022055025 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 123022055025.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 352498551 + ... + 352498899.

Almost surely, 2^123022055025 is an apocalyptic number.

123022055025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123022055025 is the 350745-th square number.

123022055025 is the 175373-rd centered octagonal number.

It is an amenable number.

123022055025 is a deficient number, since it is larger than the sum of its proper divisors (101304714096).

123022055025 is an frugal number, since it uses more digits than its factorization.

123022055025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 123022055025 its reverse (520550220321), we get a palindrome (643572275346).

The spelling of 123022055025 in words is "one hundred twenty-three billion, twenty-two million, fifty-five thousand, twenty-five".