101321021323 has 4 divisors (see below), whose sum is σ = 101321682808. Its totient is φ = 101320359840.

The previous prime is 101321021311. The next prime is 101321021357. The reversal of 101321021323 is 323120123101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 323120123101 = 211 ⋅1531374991.

It is a cyclic number.

It is not a de Polignac number, because 101321021323 - 2⁹ = 101321020811 is a prime.

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 101321021323.

It is not an unprimeable number, because it can be changed into a prime (101321021393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30628 + ... + 451198.

It is an arithmetic number, because the mean of its divisors is an integer number (25330420702).

Almost surely, 2^101321021323 is an apocalyptic number.

101321021323 is a deficient number, since it is larger than the sum of its proper divisors (661485).

101321021323 is an equidigital number, since it uses as much as digits as its factorization.

101321021323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661484.

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

Adding to 101321021323 its reverse (323120123101), we get a palindrome (424441144424).

The spelling of 101321021323 in words is "one hundred one billion, three hundred twenty-one million, twenty-one thousand, three hundred twenty-three".