1131403141 has 4 divisors (see below), whose sum is σ = 1234257984. Its totient is φ = 1028548300.

The previous prime is 1131403139. The next prime is 1131403183. The reversal of 1131403141 is 1413041311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1131403141 - 2¹ = 1131403139 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 (1131493141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51427405 + ... + 51427426.

It is an arithmetic number, because the mean of its divisors is an integer number (308564496).

Almost surely, 2^1131403141 is an apocalyptic number.

1131403141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1131403141 is a deficient number, since it is larger than the sum of its proper divisors (102854843).

1131403141 is a wasteful number, since it uses less digits than its factorization.

1131403141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102854842.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1131403141 is about 33636.3366168196. The cubic root of 1131403141 is about 1042.0113752760.

Adding to 1131403141 its reverse (1413041311), we get a palindrome (2544444452).

It can be divided in two parts, 113140 and 3141, that added together give a square (116281 = 341²).

The spelling of 1131403141 in words is "one billion, one hundred thirty-one million, four hundred three thousand, one hundred forty-one".