1103020031321 has 16 divisors (see below), whose sum is σ = 1250425444800. Its totient is φ = 964554723648.

The previous prime is 1103020031299. The next prime is 1103020031327. The reversal of 1103020031321 is 1231300203011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103020031321 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 1103020031321.

It is not an unprimeable number, because it can be changed into a prime (1103020031327) 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, 13152695 + ... + 13236291.

It is an arithmetic number, because the mean of its divisors is an integer number (78151590300).

Almost surely, 2^{1103020031321} is an apocalyptic number.

It is an amenable number.

1103020031321 is a deficient number, since it is larger than the sum of its proper divisors (147405413479).

1103020031321 is a wasteful number, since it uses less digits than its factorization.

1103020031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137048.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1103020031321 its reverse (1231300203011), we get a palindrome (2334320234332).

The spelling of 1103020031321 in words is "one trillion, one hundred three billion, twenty million, thirty-one thousand, three hundred twenty-one".