1131053405 has 8 divisors (see below), whose sum is σ = 1416275712. Its totient is φ = 865501648.

The previous prime is 1131053387. The next prime is 1131053411. The reversal of 1131053405 is 5043501311.

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

It is a cyclic number.

It is not a de Polignac number, because 1131053405 - 2²⁸ = 862617949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4917509 + ... + 4917738.

It is an arithmetic number, because the mean of its divisors is an integer number (177034464).

Almost surely, 2^1131053405 is an apocalyptic number.

It is an amenable number.

1131053405 is a deficient number, since it is larger than the sum of its proper divisors (285222307).

1131053405 is an equidigital number, since it uses as much as digits as its factorization.

1131053405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9835275.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1131053405 is about 33631.1374324450. The cubic root of 1131053405 is about 1041.9039963840.

Adding to 1131053405 its reverse (5043501311), we get a palindrome (6174554716).

The spelling of 1131053405 in words is "one billion, one hundred thirty-one million, fifty-three thousand, four hundred five".