1131233023 has 16 divisors (see below), whose sum is σ = 1208092320. Its totient is φ = 1055563776.

The previous prime is 1131233017. The next prime is 1131233029. The reversal of 1131233023 is 3203321311.

It is an interprime number because it is at equal distance from previous prime (1131233017) and next prime (1131233029).

It is a cyclic number.

It is not a de Polignac number, because 1131233023 - 2⁹ = 1131232511 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 (1131233029) 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, 1827208 + ... + 1827826.

It is an arithmetic number, because the mean of its divisors is an integer number (75505770).

Almost surely, 2^1131233023 is an apocalyptic number.

1131233023 is a deficient number, since it is larger than the sum of its proper divisors (76859297).

1131233023 is a wasteful number, since it uses less digits than its factorization.

1131233023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1131233023 is about 33633.8077386430. The cubic root of 1131233023 is about 1041.9591469794.

Adding to 1131233023 its reverse (3203321311), we get a palindrome (4334554334).

The spelling of 1131233023 in words is "one billion, one hundred thirty-one million, two hundred thirty-three thousand, twenty-three".