1002201303121 has 4 divisors (see below), whose sum is σ = 1002423180852. Its totient is φ = 1001979425392.

The previous prime is 1002201303091. The next prime is 1002201303151. The reversal of 1002201303121 is 1213031022001.

1002201303121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (1002201303091) and next prime (1002201303151).

It can be written as a sum of positive squares in 2 ways, for example, as 433406288896 + 568795014225 = 658336^2 + 754185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002201303121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002201303095 and 1002201303104.

It is not an unprimeable number, because it can be changed into a prime (1002201303151) 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, 110932090 + ... + 110941123.

It is an arithmetic number, because the mean of its divisors is an integer number (250605795213).

Almost surely, 2^{1002201303121} is an apocalyptic number.

It is an amenable number.

1002201303121 is a deficient number, since it is larger than the sum of its proper divisors (221877731).

1002201303121 is an equidigital number, since it uses as much as digits as its factorization.

1002201303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221877730.

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

Adding to 1002201303121 its reverse (1213031022001), we get a palindrome (2215232325122).

The spelling of 1002201303121 in words is "one trillion, two billion, two hundred one million, three hundred three thousand, one hundred twenty-one".