123100425 has 48 divisors (see below), whose sum is σ = 258455680. Its totient is φ = 56272320.

The previous prime is 123100423. The next prime is 123100427. The reversal of 123100425 is 524001321.

It is an interprime number because it is at equal distance from previous prime (123100423) and next prime (123100427).

It is not a de Polignac number, because 123100425 - 2¹ = 123100423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123100398 and 123100407.

It is not an unprimeable number, because it can be changed into a prime (123100423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8302 + ... + 17751.

Almost surely, 2^123100425 is an apocalyptic number.

123100425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123100425 is an abundant number, since it is smaller than the sum of its proper divisors (135355255).

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

123100425 is a wasteful number, since it uses less digits than its factorization.

123100425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26079 (or 26068 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 123100425 is about 11095.0630913033. The cubic root of 123100425 is about 497.4542940932.

Adding to 123100425 its reverse (524001321), we get a palindrome (647101746).

The spelling of 123100425 in words is "one hundred twenty-three million, one hundred thousand, four hundred twenty-five".