1020120323213 has 16 divisors (see below), whose sum is σ = 1147827542400. Its totient is φ = 901864465920.

The previous prime is 1020120323177. The next prime is 1020120323227. The reversal of 1020120323213 is 3123230210201.

It is a cyclic number.

It is not a de Polignac number, because 1020120323213 - 2¹⁸ = 1020120061069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020120323273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28450028 + ... + 28485861.

It is an arithmetic number, because the mean of its divisors is an integer number (71739221400).

Almost surely, 2^{1020120323213} is an apocalyptic number.

It is an amenable number.

1020120323213 is a deficient number, since it is larger than the sum of its proper divisors (127707219187).

1020120323213 is a wasteful number, since it uses less digits than its factorization.

1020120323213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56935972.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1020120323213 its reverse (3123230210201), we get a palindrome (4143350533414).

The spelling of 1020120323213 in words is "one trillion, twenty billion, one hundred twenty million, three hundred twenty-three thousand, two hundred thirteen".