1131430023 has 6 divisors (see below), whose sum is σ = 1634287824. Its totient is φ = 754286676.

The previous prime is 1131430009. The next prime is 1131430049. The reversal of 1131430023 is 3200341311.

It is not a de Polignac number, because 1131430023 - 2⁵ = 1131429991 is a prime.

It is a super-3 number, since 3×1131430023³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131429978 and 1131430005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131430423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62857215 + ... + 62857232.

It is an arithmetic number, because the mean of its divisors is an integer number (272381304).

Almost surely, 2^1131430023 is an apocalyptic number.

1131430023 is a deficient number, since it is larger than the sum of its proper divisors (502857801).

1131430023 is a wasteful number, since it uses less digits than its factorization.

1131430023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125714453 (or 125714450 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1131430023 is about 33636.7362120643. The cubic root of 1131430023 is about 1042.0196278982.

Adding to 1131430023 its reverse (3200341311), we get a palindrome (4331771334).

The spelling of 1131430023 in words is "one billion, one hundred thirty-one million, four hundred thirty thousand, twenty-three".