1323112211421 has 48 divisors (see below), whose sum is σ = 2410945766208. Its totient is φ = 634459392000.

The previous prime is 1323112211419. The next prime is 1323112211459. The reversal of 1323112211421 is 1241122113231.

It is not a de Polignac number, because 1323112211421 - 2¹ = 1323112211419 is a prime.

It is a super-2 number, since 2×1323112211421² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1323112211391 and 1323112211400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323112211461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31450180 + ... + 31492221.

It is an arithmetic number, because the mean of its divisors is an integer number (50228036796).

Almost surely, 2^{1323112211421} is an apocalyptic number.

1323112211421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1323112211421 is a deficient number, since it is larger than the sum of its proper divisors (1087833554787).

1323112211421 is a wasteful number, since it uses less digits than its factorization.

1323112211421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62942442 (or 62942435 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

Adding to 1323112211421 its reverse (1241122113231), we get a palindrome (2564234324652).

The spelling of 1323112211421 in words is "one trillion, three hundred twenty-three billion, one hundred twelve million, two hundred eleven thousand, four hundred twenty-one".