1321134212001 has 8 divisors (see below), whose sum is σ = 1854223455520. Its totient is φ = 834400554912.

The previous prime is 1321134211987. The next prime is 1321134212003. The reversal of 1321134212001 is 1002124311231.

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

It is not a de Polignac number, because 1321134212001 - 2²¹ = 1321132114849 is a prime.

It is a super-2 number, since 2×1321134212001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321134212003) 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, 11588896540 + ... + 11588896653.

It is an arithmetic number, because the mean of its divisors is an integer number (231777931940).

Almost surely, 2^{1321134212001} is an apocalyptic number.

It is an amenable number.

1321134212001 is a deficient number, since it is larger than the sum of its proper divisors (533089243519).

1321134212001 is a wasteful number, since it uses less digits than its factorization.

1321134212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23177793215.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1321134212001 its reverse (1002124311231), we get a palindrome (2323258523232).

The spelling of 1321134212001 in words is "one trillion, three hundred twenty-one billion, one hundred thirty-four million, two hundred twelve thousand, one".