1321303230111 has 24 divisors (see below), whose sum is σ = 1887092292864. Its totient is φ = 822051925200.

The previous prime is 1321303230103. The next prime is 1321303230119. The reversal of 1321303230111 is 1110323031231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1321303230103) and next prime (1321303230119).

It is not a de Polignac number, because 1321303230111 - 2³ = 1321303230103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321303230119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9032215 + ... + 9177336.

It is an arithmetic number, because the mean of its divisors is an integer number (78628845536).

Almost surely, 2^{1321303230111} is an apocalyptic number.

1321303230111 is a deficient number, since it is larger than the sum of its proper divisors (565789062753).

1321303230111 is a wasteful number, since it uses less digits than its factorization.

1321303230111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18209659 (or 18209640 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1321303230111 its reverse (1110323031231), we get a palindrome (2431626261342).

The spelling of 1321303230111 in words is "one trillion, three hundred twenty-one billion, three hundred three million, two hundred thirty thousand, one hundred eleven".