1021100316323 has 4 divisors (see below), whose sum is σ = 1023232050240. Its totient is φ = 1018968582408.

The previous prime is 1021100316319. The next prime is 1021100316331. The reversal of 1021100316323 is 3236130011201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1021100316323 - 2² = 1021100316319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021105316323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065866240 + ... + 1065867197.

It is an arithmetic number, because the mean of its divisors is an integer number (255808012560).

Almost surely, 2^{1021100316323} is an apocalyptic number.

1021100316323 is a deficient number, since it is larger than the sum of its proper divisors (2131733917).

1021100316323 is an equidigital number, since it uses as much as digits as its factorization.

1021100316323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131733916.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1021100316323 its reverse (3236130011201), we get a palindrome (4257230327524).

The spelling of 1021100316323 in words is "one trillion, twenty-one billion, one hundred million, three hundred sixteen thousand, three hundred twenty-three".