1303212212331 has 4 divisors (see below), whose sum is σ = 1737616283112. Its totient is φ = 868808141552.

The previous prime is 1303212212327. The next prime is 1303212212339. The reversal of 1303212212331 is 1332122123031.

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

It is a cyclic number.

It is not a de Polignac number, because 1303212212331 - 2² = 1303212212327 is a prime.

It is a super-2 number, since 2×1303212212331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1303212212339) 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, 217202035386 + ... + 217202035391.

It is an arithmetic number, because the mean of its divisors is an integer number (434404070778).

Almost surely, 2^{1303212212331} is an apocalyptic number.

1303212212331 is a deficient number, since it is larger than the sum of its proper divisors (434404070781).

1303212212331 is an equidigital number, since it uses as much as digits as its factorization.

1303212212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434404070780.

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

Adding to 1303212212331 its reverse (1332122123031), we get a palindrome (2635334335362).

The spelling of 1303212212331 in words is "one trillion, three hundred three billion, two hundred twelve million, two hundred twelve thousand, three hundred thirty-one".