1213444132001 has 16 divisors (see below), whose sum is σ = 1223998776000. Its totient is φ = 1202924276928.

The previous prime is 1213444131997. The next prime is 1213444132003. The reversal of 1213444132001 is 1002314443121.

It is a cyclic number.

It is not a de Polignac number, because 1213444132001 - 2² = 1213444131997 is a prime.

It is a super-2 number, since 2×1213444132001² (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 (1213444132003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180220031 + ... + 180226763.

It is an arithmetic number, because the mean of its divisors is an integer number (76499923500).

Almost surely, 2^{1213444132001} is an apocalyptic number.

It is an amenable number.

1213444132001 is a deficient number, since it is larger than the sum of its proper divisors (10554643999).

1213444132001 is a wasteful number, since it uses less digits than its factorization.

1213444132001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9088.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1213444132001 its reverse (1002314443121), we get a palindrome (2215758575122).

The spelling of 1213444132001 in words is "one trillion, two hundred thirteen billion, four hundred forty-four million, one hundred thirty-two thousand, one".