1131456423 has 8 divisors (see below), whose sum is σ = 1511121136. Its totient is φ = 753048000.

The previous prime is 1131456409. The next prime is 1131456433. The reversal of 1131456423 is 3246541311.

1131456423 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131456423 - 2⁸ = 1131456167 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 (1131456433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311968 + ... + 315573.

It is an arithmetic number, because the mean of its divisors is an integer number (188890142).

Almost surely, 2^1131456423 is an apocalyptic number.

1131456423 is a deficient number, since it is larger than the sum of its proper divisors (379664713).

1131456423 is an equidigital number, since it uses as much as digits as its factorization.

1131456423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628145.

The product of its digits is 8640, while the sum is 30.

The square root of 1131456423 is about 33637.1286378609. The cubic root of 1131456423 is about 1042.0277324218.

Adding to 1131456423 its reverse (3246541311), we get a palindrome (4377997734).

The spelling of 1131456423 in words is "one billion, one hundred thirty-one million, four hundred fifty-six thousand, four hundred twenty-three".