1020100312321 has 4 divisors (see below), whose sum is σ = 1021287857200. Its totient is φ = 1018912767444.

The previous prime is 1020100312289. The next prime is 1020100312327. The reversal of 1020100312321 is 1232130010201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1020100312321 - 2⁵ = 1020100312289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020100312295 and 1020100312304.

It is not an unprimeable number, because it can be changed into a prime (1020100312327) 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, 593771151 + ... + 593772868.

It is an arithmetic number, because the mean of its divisors is an integer number (255321964300).

Almost surely, 2^{1020100312321} is an apocalyptic number.

It is an amenable number.

1020100312321 is a deficient number, since it is larger than the sum of its proper divisors (1187544879).

1020100312321 is an equidigital number, since it uses as much as digits as its factorization.

1020100312321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187544878.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1020100312321 its reverse (1232130010201), we get a palindrome (2252230322522).

The spelling of 1020100312321 in words is "one trillion, twenty billion, one hundred million, three hundred twelve thousand, three hundred twenty-one".