1321000042033 has 8 divisors (see below), whose sum is σ = 1509760328768. Its totient is φ = 1132251254064.

The previous prime is 1321000041997. The next prime is 1321000042181. The reversal of 1321000042033 is 3302400001231.

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

It is not a de Polignac number, because 1321000042033 - 2¹⁷ = 1320999910961 is a prime.

It is a super-2 number, since 2×1321000042033² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321000042033.

It is not an unprimeable number, because it can be changed into a prime (1321000045033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2627091 + ... + 3089272.

It is an arithmetic number, because the mean of its divisors is an integer number (188720041096).

Almost surely, 2^{1321000042033} is an apocalyptic number.

It is an amenable number.

1321000042033 is a deficient number, since it is larger than the sum of its proper divisors (188760286735).

1321000042033 is an equidigital number, since it uses as much as digits as its factorization.

1321000042033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749383.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1321000042033 its reverse (3302400001231), we get a palindrome (4623400043264).

The spelling of 1321000042033 in words is "one trillion, three hundred twenty-one billion, forty-two thousand, thirty-three".