1303211232321 has 16 divisors (see below), whose sum is σ = 1908593111040. Its totient is φ = 787294656720.

The previous prime is 1303211232313. The next prime is 1303211232329. The reversal of 1303211232321 is 1232321123031.

It is an interprime number because it is at equal distance from previous prime (1303211232313) and next prime (1303211232329).

It is not a de Polignac number, because 1303211232321 - 2³ = 1303211232313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1303211232291 and 1303211232300.

It is not an unprimeable number, because it can be changed into a prime (1303211232329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497028145 + ... + 497030766.

It is an arithmetic number, because the mean of its divisors is an integer number (119287069440).

Almost surely, 2^{1303211232321} is an apocalyptic number.

It is an amenable number.

1303211232321 is a deficient number, since it is larger than the sum of its proper divisors (605381878719).

1303211232321 is a wasteful number, since it uses less digits than its factorization.

1303211232321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994058956.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1303211232321 its reverse (1232321123031), we get a palindrome (2535532355352).

The spelling of 1303211232321 in words is "one trillion, three hundred three billion, two hundred eleven million, two hundred thirty-two thousand, three hundred twenty-one".