1002312001213 has 4 divisors (see below), whose sum is σ = 1003779515808. Its totient is φ = 1000844486620.

The previous prime is 1002312001153. The next prime is 1002312001219. The reversal of 1002312001213 is 3121002132001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002312001213 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 (1002312001219) 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, 733756273 + ... + 733757638.

It is an arithmetic number, because the mean of its divisors is an integer number (250944878952).

Almost surely, 2^{1002312001213} is an apocalyptic number.

It is an amenable number.

1002312001213 is a deficient number, since it is larger than the sum of its proper divisors (1467514595).

1002312001213 is an equidigital number, since it uses as much as digits as its factorization.

1002312001213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467514594.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1002312001213 its reverse (3121002132001), we get a palindrome (4123314133214).

The spelling of 1002312001213 in words is "one trillion, two billion, three hundred twelve million, one thousand, two hundred thirteen".