123058031 has 4 divisors (see below), whose sum is σ = 123188112. Its totient is φ = 122927952.

The previous prime is 123058007. The next prime is 123058037. The reversal of 123058031 is 130850321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123058031 is a prime.

It is a super-2 number, since 2×123058031² = 30286557987193922, 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 = 123057988 and 123058006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123058037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63611 + ... + 65516.

It is an arithmetic number, because the mean of its divisors is an integer number (30797028).

Almost surely, 2^123058031 is an apocalyptic number.

123058031 is a deficient number, since it is larger than the sum of its proper divisors (130081).

123058031 is an equidigital number, since it uses as much as digits as its factorization.

123058031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130080.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 123058031 is about 11093.1524374273. The cubic root of 123058031 is about 497.3971821898.

The spelling of 123058031 in words is "one hundred twenty-three million, fifty-eight thousand, thirty-one".