123359961 has 8 divisors (see below), whose sum is σ = 168925504. Its totient is φ = 80017200.

The previous prime is 123359959. The next prime is 123359969. The reversal of 123359961 is 169953321.

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

It is not a de Polignac number, because 123359961 - 2¹ = 123359959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123359969) 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, 555565 + ... + 555786.

It is an arithmetic number, because the mean of its divisors is an integer number (21115688).

Almost surely, 2^123359961 is an apocalyptic number.

It is an amenable number.

123359961 is a deficient number, since it is larger than the sum of its proper divisors (45565543).

123359961 is a wasteful number, since it uses less digits than its factorization.

123359961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111391.

The product of its digits is 43740, while the sum is 39.

The square root of 123359961 is about 11106.7529458434. The cubic root of 123359961 is about 497.8036475318.

The spelling of 123359961 in words is "one hundred twenty-three million, three hundred fifty-nine thousand, nine hundred sixty-one".