1002120320023 has 4 divisors (see below), whose sum is σ = 1061068574160. Its totient is φ = 943172065888.

The previous prime is 1002120320011. The next prime is 1002120320029. The reversal of 1002120320023 is 3200230212001.

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 1002120320023 - 2¹³ = 1002120311831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002120319979 and 1002120320006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002120320029) 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, 29474127043 + ... + 29474127076.

It is an arithmetic number, because the mean of its divisors is an integer number (265267143540).

Almost surely, 2^{1002120320023} is an apocalyptic number.

1002120320023 is a deficient number, since it is larger than the sum of its proper divisors (58948254137).

1002120320023 is an equidigital number, since it uses as much as digits as its factorization.

1002120320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58948254136.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1002120320023 its reverse (3200230212001), we get a palindrome (4202350532024).

The spelling of 1002120320023 in words is "one trillion, two billion, one hundred twenty million, three hundred twenty thousand, twenty-three".