11131213023 has 48 divisors (see below), whose sum is σ = 20058904320. Its totient is φ = 6025902336.

The previous prime is 11131213021. The next prime is 11131213031. The reversal of 11131213023 is 32031213111.

It is not a de Polignac number, because 11131213023 - 2¹ = 11131213021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11131212987 and 11131213005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131213021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 139890 + ... + 204527.

It is an arithmetic number, because the mean of its divisors is an integer number (417893840).

Almost surely, 2^11131213023 is an apocalyptic number.

11131213023 is a deficient number, since it is larger than the sum of its proper divisors (8927691297).

11131213023 is an equidigital number, since it uses as much as digits as its factorization.

11131213023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344458 (or 344446 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11131213023 its reverse (32031213111), we get a palindrome (43162426134).

The spelling of 11131213023 in words is "eleven billion, one hundred thirty-one million, two hundred thirteen thousand, twenty-three".