1131041431 has 8 divisors (see below), whose sum is σ = 1235201184. Its totient is φ = 1029332640.

The previous prime is 1131041423. The next prime is 1131041473. The reversal of 1131041431 is 1341401311.

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 1131041431 - 2³ = 1131041423 is a prime.

It is a super-2 number, since 2×1131041431² = 2558509437277055522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1131041399 and 1131041408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131041411) 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, 611776 + ... + 613621.

It is an arithmetic number, because the mean of its divisors is an integer number (154400148).

Almost surely, 2^1131041431 is an apocalyptic number.

1131041431 is a deficient number, since it is larger than the sum of its proper divisors (104159753).

1131041431 is a wasteful number, since it uses less digits than its factorization.

1131041431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225481.

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

The square root of 1131041431 is about 33630.9594124224. The cubic root of 1131041431 is about 1041.9003196338.

Adding to 1131041431 its reverse (1341401311), we get a palindrome (2472442742).

The spelling of 1131041431 in words is "one billion, one hundred thirty-one million, forty-one thousand, four hundred thirty-one".