1011321353523 has 8 divisors (see below), whose sum is σ = 1452153738448. Its totient is φ = 622351602144.

The previous prime is 1011321353507. The next prime is 1011321353561. The reversal of 1011321353523 is 3253531231101.

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

It is not a de Polignac number, because 1011321353523 - 2⁴ = 1011321353507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011321353503) 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, 12965658340 + ... + 12965658417.

It is an arithmetic number, because the mean of its divisors is an integer number (181519217306).

Almost surely, 2^{1011321353523} is an apocalyptic number.

1011321353523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1011321353523 is a deficient number, since it is larger than the sum of its proper divisors (440832384925).

1011321353523 is a wasteful number, since it uses less digits than its factorization.

1011321353523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25931316773.

The product of its (nonzero) digits is 8100, while the sum is 30.

Adding to 1011321353523 its reverse (3253531231101), we get a palindrome (4264852584624).

The spelling of 1011321353523 in words is "one trillion, eleven billion, three hundred twenty-one million, three hundred fifty-three thousand, five hundred twenty-three".