123002031 has 8 divisors (see below), whose sum is σ = 165507760. Its totient is φ = 81248832.

The previous prime is 123001997. The next prime is 123002039. The reversal of 123002031 is 130200321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123002031 - 2⁷ = 123001903 is a prime.

It is a super-2 number, since 2×123002031² = 30258999260249922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123001998 and 123002016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123002039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187750 + ... + 188403.

It is an arithmetic number, because the mean of its divisors is an integer number (20688470).

Almost surely, 2^123002031 is an apocalyptic number.

123002031 is a deficient number, since it is larger than the sum of its proper divisors (42505729).

123002031 is a wasteful number, since it uses less digits than its factorization.

123002031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376265.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 123002031 is about 11090.6280705828. The cubic root of 123002031 is about 497.3217205878.

Adding to 123002031 its reverse (130200321), we get a palindrome (253202352).

The spelling of 123002031 in words is "one hundred twenty-three million, two thousand, thirty-one".