1323111231102 has 16 divisors (see below), whose sum is σ = 2653848467712. Its totient is φ = 439766076120.

The previous prime is 1323111231097. The next prime is 1323111231109. The reversal of 1323111231102 is 2011321113231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323111231109) 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, 317747974 + ... + 317752137.

It is an arithmetic number, because the mean of its divisors is an integer number (165865529232).

Almost surely, 2^{1323111231102} is an apocalyptic number.

1323111231102 is an abundant number, since it is smaller than the sum of its proper divisors (1330737236610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323111231102 is a wasteful number, since it uses less digits than its factorization.

1323111231102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635500463.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1323111231102 its reverse (2011321113231), we get a palindrome (3334432344333).

The spelling of 1323111231102 in words is "one trillion, three hundred twenty-three billion, one hundred eleven million, two hundred thirty-one thousand, one hundred two".