123231973 has 2 divisors, whose sum is σ = 123231974. Its totient is φ = 123231972.

The previous prime is 123231919. The next prime is 123232027. The reversal of 123231973 is 379132321.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (123231919) and next prime (123232027).

It can be written as a sum of positive squares in only one way, i.e., 66048129 + 57183844 = 8127^2 + 7562^2 .

It is an emirp because it is prime and its reverse (379132321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123231973 is a prime.

It is a super-2 number, since 2×123231973² = 30372238338945458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123231673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615986 + 61615987.

It is an arithmetic number, because the mean of its divisors is an integer number (61615987).

Almost surely, 2^123231973 is an apocalyptic number.

It is an amenable number.

123231973 is a deficient number, since it is larger than the sum of its proper divisors (1).

123231973 is an equidigital number, since it uses as much as digits as its factorization.

123231973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 31.

The square root of 123231973 is about 11100.9897306501. The cubic root of 123231973 is about 497.6314281185.

The spelling of 123231973 in words is "one hundred twenty-three million, two hundred thirty-one thousand, nine hundred seventy-three".