1202002013 has 4 divisors (see below), whose sum is σ = 1218467868. Its totient is φ = 1185536160.

The previous prime is 1202002007. The next prime is 1202002033. The reversal of 1202002013 is 3102002021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3102002021 = 47 ⋅66000043.

It can be written as a sum of positive squares in 2 ways, for example, as 841116004 + 360886009 = 29002^2 + 18997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202002013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202001985 and 1202002003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202002003) 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, 8232818 + ... + 8232963.

It is an arithmetic number, because the mean of its divisors is an integer number (304616967).

Almost surely, 2^1202002013 is an apocalyptic number.

It is an amenable number.

1202002013 is a deficient number, since it is larger than the sum of its proper divisors (16465855).

1202002013 is an equidigital number, since it uses as much as digits as its factorization.

1202002013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16465854.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1202002013 is about 34669.9006776772. The cubic root of 1202002013 is about 1063.2492009203.

Adding to 1202002013 its reverse (3102002021), we get a palindrome (4304004034).

The spelling of 1202002013 in words is "one billion, two hundred two million, two thousand, thirteen".