1302002011321 has 12 divisors (see below), whose sum is σ = 1431254762532. Its totient is φ = 1183531844000.

The previous prime is 1302002011273. The next prime is 1302002011391. The reversal of 1302002011321 is 1231102002031.

It can be written as a sum of positive squares in 2 ways, for example, as 1264196653225 + 37805358096 = 1124365^2 + 194436^2 .

It is not a de Polignac number, because 1302002011321 - 2³⁷ = 1164563057849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1302002011295 and 1302002011304.

It is not an unprimeable number, because it can be changed into a prime (1302002011391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 884811 + ... + 1840351.

It is an arithmetic number, because the mean of its divisors is an integer number (119271230211).

Almost surely, 2^{1302002011321} is an apocalyptic number.

1302002011321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1302002011321 is a deficient number, since it is larger than the sum of its proper divisors (129252751211).

1302002011321 is a wasteful number, since it uses less digits than its factorization.

1302002011321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966824 (or 966813 counting only the distinct ones).

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

Adding to 1302002011321 its reverse (1231102002031), we get a palindrome (2533104013352).

The spelling of 1302002011321 in words is "one trillion, three hundred two billion, two million, eleven thousand, three hundred twenty-one".