1213002020005 has 4 divisors (see below), whose sum is σ = 1455602424012. Its totient is φ = 970401616000.

The previous prime is 1213002019981. The next prime is 1213002020047. The reversal of 1213002020005 is 5000202003121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 234261808036 + 978740211969 = 484006^2 + 989313^2 .

It is not a de Polignac number, because 1213002020005 - 2⁵ = 1213002019973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121300201996 + ... + 121300202005.

It is an arithmetic number, because the mean of its divisors is an integer number (363900606003).

Almost surely, 2^{1213002020005} is an apocalyptic number.

It is an amenable number.

1213002020005 is a deficient number, since it is larger than the sum of its proper divisors (242600404007).

1213002020005 is an equidigital number, since it uses as much as digits as its factorization.

1213002020005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242600404006.

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 1213002020005 its reverse (5000202003121), we get a palindrome (6213204023126).

The spelling of 1213002020005 in words is "one trillion, two hundred thirteen billion, two million, twenty thousand, five".