1011231203323 has 4 divisors (see below), whose sum is σ = 1103161312728. Its totient is φ = 919301093920.

The previous prime is 1011231203321. The next prime is 1011231203351. The reversal of 1011231203323 is 3233021321101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1011231203323 - 2¹ = 1011231203321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011231203294 and 1011231203303.

It is not an unprimeable number, because it can be changed into a prime (1011231203321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45965054686 + ... + 45965054707.

It is an arithmetic number, because the mean of its divisors is an integer number (275790328182).

Almost surely, 2^{1011231203323} is an apocalyptic number.

1011231203323 is a deficient number, since it is larger than the sum of its proper divisors (91930109405).

1011231203323 is an equidigital number, since it uses as much as digits as its factorization.

1011231203323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91930109404.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1011231203323 its reverse (3233021321101), we get a palindrome (4244252524424).

The spelling of 1011231203323 in words is "one trillion, eleven billion, two hundred thirty-one million, two hundred three thousand, three hundred twenty-three".