1320231022111 has 8 divisors (see below), whose sum is σ = 1437638137200. Its totient is φ = 1207616034240.

The previous prime is 1320231022087. The next prime is 1320231022127. The reversal of 1320231022111 is 1112201320231.

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

It is a cyclic number.

It is not a de Polignac number, because 1320231022111 - 2³⁷ = 1182792068639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320231022151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1198031230 + ... + 1198032331.

It is an arithmetic number, because the mean of its divisors is an integer number (179704767150).

Almost surely, 2^{1320231022111} is an apocalyptic number.

1320231022111 is a deficient number, since it is larger than the sum of its proper divisors (117407115089).

1320231022111 is a wasteful number, since it uses less digits than its factorization.

1320231022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396063609.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1320231022111 its reverse (1112201320231), we get a palindrome (2432432342342).

The spelling of 1320231022111 in words is "one trillion, three hundred twenty billion, two hundred thirty-one million, twenty-two thousand, one hundred eleven".