1230120323 has 16 divisors (see below), whose sum is σ = 1327052160. Its totient is φ = 1135994496.

The previous prime is 1230120319. The next prime is 1230120371. The reversal of 1230120323 is 3230210321.

It is not a de Polignac number, because 1230120323 - 2² = 1230120319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230120383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828740 + ... + 830222.

It is an arithmetic number, because the mean of its divisors is an integer number (82940760).

Almost surely, 2^1230120323 is an apocalyptic number.

1230120323 is a deficient number, since it is larger than the sum of its proper divisors (96931837).

1230120323 is a wasteful number, since it uses less digits than its factorization.

1230120323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1230120323 is about 35073.0711942938. The cubic root of 1230120323 is about 1071.4762059575.

Adding to 1230120323 its reverse (3230210321), we get a palindrome (4460330644).

The spelling of 1230120323 in words is "one billion, two hundred thirty million, one hundred twenty thousand, three hundred twenty-three".