123041031 has 4 divisors (see below), whose sum is σ = 164054712. Its totient is φ = 82027352.

The previous prime is 123041027. The next prime is 123041033. The reversal of 123041031 is 130140321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123041031 - 2² = 123041027 is a prime.

It is a super-2 number, since 2×123041031² = 30278190619085922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123041031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123041033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20506836 + ... + 20506841.

It is an arithmetic number, because the mean of its divisors is an integer number (41013678).

Almost surely, 2^123041031 is an apocalyptic number.

123041031 is a deficient number, since it is larger than the sum of its proper divisors (41013681).

123041031 is an equidigital number, since it uses as much as digits as its factorization.

123041031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41013680.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 123041031 is about 11092.3861725059. The cubic root of 123041031 is about 497.3742766240.

Adding to 123041031 its reverse (130140321), we get a palindrome (253181352).

The spelling of 123041031 in words is "one hundred twenty-three million, forty-one thousand, thirty-one".