1131422321023 has 4 divisors (see below), whose sum is σ = 1131671153880. Its totient is φ = 1131173488168.

The previous prime is 1131422321017. The next prime is 1131422321059. The reversal of 1131422321023 is 3201232241311.

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

It is a cyclic number.

It is not a de Polignac number, because 1131422321023 - 2⁵ = 1131422320991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131422321063) 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, 124409608 + ... + 124418701.

It is an arithmetic number, because the mean of its divisors is an integer number (282917788470).

Almost surely, 2^{1131422321023} is an apocalyptic number.

1131422321023 is a deficient number, since it is larger than the sum of its proper divisors (248832857).

1131422321023 is an equidigital number, since it uses as much as digits as its factorization.

1131422321023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248832856.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1131422321023 its reverse (3201232241311), we get a palindrome (4332654562334).

The spelling of 1131422321023 in words is "one trillion, one hundred thirty-one billion, four hundred twenty-two million, three hundred twenty-one thousand, twenty-three".