1131102023 has 4 divisors (see below), whose sum is σ = 1132422720. Its totient is φ = 1129781328.

The previous prime is 1131102017. The next prime is 1131102031. The reversal of 1131102023 is 3202011311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3202011311 = 4457 ⋅718423.

It is a cyclic number.

It is not a de Polignac number, because 1131102023 - 2⁸ = 1131101767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131101989 and 1131102007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131102043) 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, 659063 + ... + 660776.

It is an arithmetic number, because the mean of its divisors is an integer number (283105680).

Almost surely, 2^1131102023 is an apocalyptic number.

1131102023 is a deficient number, since it is larger than the sum of its proper divisors (1320697).

1131102023 is an equidigital number, since it uses as much as digits as its factorization.

1131102023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320696.

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

The square root of 1131102023 is about 33631.8602369836. The cubic root of 1131102023 is about 1041.9189248163.

Adding to 1131102023 its reverse (3202011311), we get a palindrome (4333113334).

The spelling of 1131102023 in words is "one billion, one hundred thirty-one million, one hundred two thousand, twenty-three".