1101312023 has 4 divisors (see below), whose sum is σ = 1258642320. Its totient is φ = 943981728.

The previous prime is 1101312019. The next prime is 1101312049. The reversal of 1101312023 is 3202131011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3202131011 = 61 ⋅52493951.

It is a cyclic number.

It is not a de Polignac number, because 1101312023 - 2² = 1101312019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101311989 and 1101312007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101312053) 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, 78665138 + ... + 78665151.

It is an arithmetic number, because the mean of its divisors is an integer number (314660580).

Almost surely, 2^1101312023 is an apocalyptic number.

1101312023 is a deficient number, since it is larger than the sum of its proper divisors (157330297).

1101312023 is an equidigital number, since it uses as much as digits as its factorization.

1101312023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157330296.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1101312023 is about 33186.0215000232. The cubic root of 1101312023 is about 1032.6903691334.

Adding to 1101312023 its reverse (3202131011), we get a palindrome (4303443034).

The spelling of 1101312023 in words is "one billion, one hundred one million, three hundred twelve thousand, twenty-three".