1303121010323 has 16 divisors (see below), whose sum is σ = 1429692642816. Its totient is φ = 1177918489440.

The previous prime is 1303121010319. The next prime is 1303121010361. The reversal of 1303121010323 is 3230101213031.

It is not a de Polignac number, because 1303121010323 - 2² = 1303121010319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303121010295 and 1303121010304.

It is not an unprimeable number, because it can be changed into a prime (1303121010223) 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 15 ways as a sum of consecutive naturals, for example, 989261 + ... + 1893377.

It is an arithmetic number, because the mean of its divisors is an integer number (89355790176).

Almost surely, 2^{1303121010323} is an apocalyptic number.

1303121010323 is a deficient number, since it is larger than the sum of its proper divisors (126571632493).

1303121010323 is a wasteful number, since it uses less digits than its factorization.

1303121010323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904874.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1303121010323 its reverse (3230101213031), we get a palindrome (4533222223354).

The spelling of 1303121010323 in words is "one trillion, three hundred three billion, one hundred twenty-one million, ten thousand, three hundred twenty-three".