123401773 has 4 divisors (see below), whose sum is σ = 134620128. Its totient is φ = 112183420.

The previous prime is 123401767. The next prime is 123401779. The reversal of 123401773 is 377104321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (123401767) and next prime (123401779).

It is a cyclic number.

It is not a de Polignac number, because 123401773 - 2⁹ = 123401261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123401779) 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 3 ways as a sum of consecutive naturals, for example, 5609161 + ... + 5609182.

It is an arithmetic number, because the mean of its divisors is an integer number (33655032).

Almost surely, 2^123401773 is an apocalyptic number.

It is an amenable number.

123401773 is a deficient number, since it is larger than the sum of its proper divisors (11218355).

123401773 is a wasteful number, since it uses less digits than its factorization.

123401773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11218354.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 123401773 is about 11108.6350646693. The cubic root of 123401773 is about 497.8598835390.

The spelling of 123401773 in words is "one hundred twenty-three million, four hundred one thousand, seven hundred seventy-three".