123124140125 has 32 divisors (see below), whose sum is σ = 177726092544. Its totient is φ = 83410728000.

The previous prime is 123124140091. The next prime is 123124140137. The reversal of 123124140125 is 521041421321.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-123124140125 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123124140094 and 123124140103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 775046 + ... + 920295.

It is an arithmetic number, because the mean of its divisors is an integer number (5553940392).

Almost surely, 2^123124140125 is an apocalyptic number.

It is an amenable number.

123124140125 is a deficient number, since it is larger than the sum of its proper divisors (54601952419).

123124140125 is an equidigital number, since it uses as much as digits as its factorization.

123124140125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695446 (or 1695436 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 123124140125 its reverse (521041421321), we get a palindrome (644165561446).

The spelling of 123124140125 in words is "one hundred twenty-three billion, one hundred twenty-four million, one hundred forty thousand, one hundred twenty-five".