1043020013321 has 8 divisors (see below), whose sum is σ = 1225366169664. Its totient is φ = 875261549520.

The previous prime is 1043020013309. The next prime is 1043020013351. The reversal of 1043020013321 is 1233100203401.

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 1043020013321 - 2²² = 1043015819017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1043020013293 and 1043020013302.

It is not an unprimeable number, because it can be changed into a prime (1043020013351) 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, 3646922981 + ... + 3646923266.

It is an arithmetic number, because the mean of its divisors is an integer number (153170771208).

Almost surely, 2^{1043020013321} is an apocalyptic number.

1043020013321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1043020013321 is a deficient number, since it is larger than the sum of its proper divisors (182346156343).

1043020013321 is a wasteful number, since it uses less digits than its factorization.

1043020013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7293846271.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1043020013321 its reverse (1233100203401), we get a palindrome (2276120216722).

The spelling of 1043020013321 in words is "one trillion, forty-three billion, twenty million, thirteen thousand, three hundred twenty-one".