123001120031 has 8 divisors (see below), whose sum is σ = 124099050240. Its totient is φ = 121903355392.

The previous prime is 123001120013. The next prime is 123001120043. The reversal of 123001120031 is 130021100321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123001120031 is a prime.

It is a super-2 number, since 2×123001120031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123001119988 and 123001120015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123001120001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1823810 + ... + 1890048.

It is an arithmetic number, because the mean of its divisors is an integer number (15512381280).

Almost surely, 2^123001120031 is an apocalyptic number.

123001120031 is a deficient number, since it is larger than the sum of its proper divisors (1097930209).

123001120031 is a wasteful number, since it uses less digits than its factorization.

123001120031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82785.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 123001120031 its reverse (130021100321), we get a palindrome (253022220352).

The spelling of 123001120031 in words is "one hundred twenty-three billion, one million, one hundred twenty thousand, thirty-one".