123011025 has 12 divisors (see below), whose sum is σ = 203378352. Its totient is φ = 65605840.

The previous prime is 123011023. The next prime is 123011041. The reversal of 123011025 is 520110321.

It is not a de Polignac number, because 123011025 - 2¹ = 123011023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 123010995 and 123011013.

It is not an unprimeable number, because it can be changed into a prime (123011023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 819999 + ... + 820148.

It is an arithmetic number, because the mean of its divisors is an integer number (16948196).

Almost surely, 2^123011025 is an apocalyptic number.

123011025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123011025 is a deficient number, since it is larger than the sum of its proper divisors (80367327).

123011025 is a wasteful number, since it uses less digits than its factorization.

123011025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640160 (or 1640155 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 123011025 is about 11091.0335406580. The cubic root of 123011025 is about 497.3338418038. Note that the first 3 decimals are identical.

Adding to 123011025 its reverse (520110321), we get a palindrome (643121346).

The spelling of 123011025 in words is "one hundred twenty-three million, eleven thousand, twenty-five".