1201330123 has 8 divisors (see below), whose sum is σ = 1380535520. Its totient is φ = 1024021440.

The previous prime is 1201330111. The next prime is 1201330147. The reversal of 1201330123 is 3210331021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201330123 - 2²¹ = 1199232971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201330097 and 1201330106.

It is not an unprimeable number, because it can be changed into a prime (1201330103) 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 7 ways as a sum of consecutive naturals, for example, 472818 + ... + 475351.

It is an arithmetic number, because the mean of its divisors is an integer number (172566940).

Almost surely, 2^1201330123 is an apocalyptic number.

1201330123 is a deficient number, since it is larger than the sum of its proper divisors (179205397).

1201330123 is an equidigital number, since it uses as much as digits as its factorization.

1201330123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948357.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1201330123 is about 34660.2095060027. The cubic root of 1201330123 is about 1063.0510538159.

Adding to 1201330123 its reverse (3210331021), we get a palindrome (4411661144).

The spelling of 1201330123 in words is "one billion, two hundred one million, three hundred thirty thousand, one hundred twenty-three".