1243020310002 has 12 divisors (see below), whose sum is σ = 2693210671710. Its totient is φ = 414340103328.

The previous prime is 1243020309989. The next prime is 1243020310057. The reversal of 1243020310002 is 2000130203421.

It can be written as a sum of positive squares in only one way, i.e., 1185352610121 + 57667699881 = 1088739^2 + 240141^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 69056683889 = 1243020310002 / (1 + 2 + 4 + 3 + 0 + 2 + 0 + 3 + 1 + 0 + 0 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34528341927 + ... + 34528341962.

Almost surely, 2^{1243020310002} is an apocalyptic number.

1243020310002 is an abundant number, since it is smaller than the sum of its proper divisors (1450190361708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243020310002 is a wasteful number, since it uses less digits than its factorization.

1243020310002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69056683897 (or 69056683894 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1243020310002 its reverse (2000130203421), we get a palindrome (3243150513423).

The spelling of 1243020310002 in words is "one trillion, two hundred forty-three billion, twenty million, three hundred ten thousand, two".