1020123323 has 4 divisors (see below), whose sum is σ = 1024578240. Its totient is φ = 1015668408.

The previous prime is 1020123317. The next prime is 1020123329. The reversal of 1020123323 is 3233210201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3233210201 = 13 ⋅248708477.

It is an interprime number because it is at equal distance from previous prime (1020123317) and next prime (1020123329).

It is a cyclic number.

It is not a de Polignac number, because 1020123323 - 2⁸ = 1020123067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020123329) 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 3 ways as a sum of consecutive naturals, for example, 2227115 + ... + 2227572.

It is an arithmetic number, because the mean of its divisors is an integer number (256144560).

Almost surely, 2^1020123323 is an apocalyptic number.

1020123323 is a deficient number, since it is larger than the sum of its proper divisors (4454917).

1020123323 is an equidigital number, since it uses as much as digits as its factorization.

1020123323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4454916.

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

The square root of 1020123323 is about 31939.3694834447. The cubic root of 1020123323 is about 1006.6632764652.

Adding to 1020123323 its reverse (3233210201), we get a palindrome (4253333524).

The spelling of 1020123323 in words is "one billion, twenty million, one hundred twenty-three thousand, three hundred twenty-three".