1011103431321 has 8 divisors (see below), whose sum is σ = 1360506146560. Its totient is φ = 667884835152.

The previous prime is 1011103431313. The next prime is 1011103431347. The reversal of 1011103431321 is 1231343011101.

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

It is not a de Polignac number, because 1011103431321 - 2³ = 1011103431313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011103431301) 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, 1546029385 + ... + 1546030038.

It is an arithmetic number, because the mean of its divisors is an integer number (170063268320).

Almost surely, 2^{1011103431321} is an apocalyptic number.

It is an amenable number.

1011103431321 is a deficient number, since it is larger than the sum of its proper divisors (349402715239).

1011103431321 is a wasteful number, since it uses less digits than its factorization.

1011103431321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092059535.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1011103431321 its reverse (1231343011101), we get a palindrome (2242446442422).

The spelling of 1011103431321 in words is "one trillion, eleven billion, one hundred three million, four hundred thirty-one thousand, three hundred twenty-one".