1033121321103 has 8 divisors (see below), whose sum is σ = 1377503478400. Its totient is φ = 688743355608.

The previous prime is 1033121321077. The next prime is 1033121321119. The reversal of 1033121321103 is 3011231213301.

It is a happy number.

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

It is not a de Polignac number, because 1033121321103 - 2¹⁶ = 1033121255567 is a prime.

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 1033121321103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1033121321503) 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, 418933 + ... + 1497246.

It is an arithmetic number, because the mean of its divisors is an integer number (172187934800).

Almost surely, 2^{1033121321103} is an apocalyptic number.

1033121321103 is a deficient number, since it is larger than the sum of its proper divisors (344382157297).

1033121321103 is a wasteful number, since it uses less digits than its factorization.

1033121321103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095901.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1033121321103 its reverse (3011231213301), we get a palindrome (4044352534404).

The spelling of 1033121321103 in words is "one trillion, thirty-three billion, one hundred twenty-one million, three hundred twenty-one thousand, one hundred three".