1302203203121 has 8 divisors (see below), whose sum is σ = 1339909447464. Its totient is φ = 1264983491200.

The previous prime is 1302203203069. The next prime is 1302203203153. The reversal of 1302203203121 is 1213023022031.

It can be written as a sum of positive squares in 4 ways, for example, as 889475334400 + 412727868721 = 943120^2 + 642439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1302203203121 - 2¹⁸ = 1302202940977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1302203203093 and 1302203203102.

It is not an unprimeable number, because it can be changed into a prime (1302203203181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121627676 + ... + 121638381.

It is an arithmetic number, because the mean of its divisors is an integer number (167488680933).

Almost surely, 2^{1302203203121} is an apocalyptic number.

It is an amenable number.

1302203203121 is a deficient number, since it is larger than the sum of its proper divisors (37706244343).

1302203203121 is a wasteful number, since it uses less digits than its factorization.

1302203203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243266211.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1302203203121 its reverse (1213023022031), we get a palindrome (2515226225152).

The spelling of 1302203203121 in words is "one trillion, three hundred two billion, two hundred three million, two hundred three thousand, one hundred twenty-one".