1002321031011 has 4 divisors (see below), whose sum is σ = 1336428041352. Its totient is φ = 668214020672.

The previous prime is 1002321031007. The next prime is 1002321031027. The reversal of 1002321031011 is 1101301232001.

It is a happy number.

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 1002321031011 - 2² = 1002321031007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002321038011) 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, 167053505166 + ... + 167053505171.

It is an arithmetic number, because the mean of its divisors is an integer number (334107010338).

Almost surely, 2^{1002321031011} is an apocalyptic number.

1002321031011 is a deficient number, since it is larger than the sum of its proper divisors (334107010341).

1002321031011 is an equidigital number, since it uses as much as digits as its factorization.

1002321031011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334107010340.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1002321031011 its reverse (1101301232001), we get a palindrome (2103622263012).

The spelling of 1002321031011 in words is "one trillion, two billion, three hundred twenty-one million, thirty-one thousand, eleven".