1323011111021 has 8 divisors (see below), whose sum is σ = 1351694674944. Its totient is φ = 1294612956000.

The previous prime is 1323011110999. The next prime is 1323011111039. The reversal of 1323011111021 is 1201111103231.

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 1323011111021 - 2²² = 1323006916717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323011311021) 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, 71342855 + ... + 71361396.

It is an arithmetic number, because the mean of its divisors is an integer number (168961834368).

Almost surely, 2^{1323011111021} is an apocalyptic number.

It is an amenable number.

1323011111021 is a deficient number, since it is larger than the sum of its proper divisors (28683563923).

1323011111021 is a wasteful number, since it uses less digits than its factorization.

1323011111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142704451.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1323011111021 its reverse (1201111103231), we get a palindrome (2524122214252).

The spelling of 1323011111021 in words is "one trillion, three hundred twenty-three billion, eleven million, one hundred eleven thousand, twenty-one".