1303231212021 has 8 divisors (see below), whose sum is σ = 1737700357504. Its totient is φ = 868791437280.

The previous prime is 1303231211983. The next prime is 1303231212029. The reversal of 1303231212021 is 1202121323031.

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

It is not a de Polignac number, because 1303231212021 - 2⁶ = 1303231211957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303231212029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7238941 + ... + 7416786.

It is an arithmetic number, because the mean of its divisors is an integer number (217212544688).

Almost surely, 2^{1303231212021} is an apocalyptic number.

It is an amenable number.

1303231212021 is a deficient number, since it is larger than the sum of its proper divisors (434469145483).

1303231212021 is a wasteful number, since it uses less digits than its factorization.

1303231212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14685371.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1303231212021 its reverse (1202121323031), we get a palindrome (2505352535052).

The spelling of 1303231212021 in words is "one trillion, three hundred three billion, two hundred thirty-one million, two hundred twelve thousand, twenty-one".