1316020123 has 8 divisors (see below), whose sum is σ = 1511219520. Its totient is φ = 1133414280.

The previous prime is 1316020103. The next prime is 1316020151. The reversal of 1316020123 is 3210206131.

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 1316020123 - 2⁹ = 1316019611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1316020123.

It is not an unprimeable number, because it can be changed into a prime (1316020103) 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, 3148165 + ... + 3148582.

It is an arithmetic number, because the mean of its divisors is an integer number (188902440).

Almost surely, 2^1316020123 is an apocalyptic number.

1316020123 is a deficient number, since it is larger than the sum of its proper divisors (195199397).

1316020123 is a wasteful number, since it uses less digits than its factorization.

1316020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6296777.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1316020123 is about 36276.9916475994. The cubic root of 1316020123 is about 1095.8577331788.

Adding to 1316020123 its reverse (3210206131), we get a palindrome (4526226254).

The spelling of 1316020123 in words is "one billion, three hundred sixteen million, twenty thousand, one hundred twenty-three".