1131021323023 has 16 divisors (see below), whose sum is σ = 1150529150304. Its totient is φ = 1111592401920.

The previous prime is 1131021322999. The next prime is 1131021323077. The reversal of 1131021323023 is 3203231201311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131021323023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131021322985 and 1131021323003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131021323093) 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, 145802661 + ... + 145810417.

It is an arithmetic number, because the mean of its divisors is an integer number (71908071894).

Almost surely, 2^{1131021323023} is an apocalyptic number.

1131021323023 is a deficient number, since it is larger than the sum of its proper divisors (19507827281).

1131021323023 is an equidigital number, since it uses as much as digits as its factorization.

1131021323023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12522.

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

Adding to 1131021323023 its reverse (3203231201311), we get a palindrome (4334252524334).

The spelling of 1131021323023 in words is "one trillion, one hundred thirty-one billion, twenty-one million, three hundred twenty-three thousand, twenty-three".