1143103631 has 4 divisors (see below), whose sum is σ = 1203267000. Its totient is φ = 1082940264.

The previous prime is 1143103627. The next prime is 1143103679. The reversal of 1143103631 is 1363013411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1143103631 - 2² = 1143103627 is a prime.

It is a super-2 number, since 2×1143103631² = 2613371822410768322, 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 = 1143103597 and 1143103606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143103531) 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 3 ways as a sum of consecutive naturals, for example, 30081656 + ... + 30081693.

It is an arithmetic number, because the mean of its divisors is an integer number (300816750).

Almost surely, 2^1143103631 is an apocalyptic number.

1143103631 is a deficient number, since it is larger than the sum of its proper divisors (60163369).

1143103631 is an equidigital number, since it uses as much as digits as its factorization.

1143103631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60163368.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1143103631 is about 33809.8156013901. The cubic root of 1143103631 is about 1045.5910763687.

The spelling of 1143103631 in words is "one billion, one hundred forty-three million, one hundred three thousand, six hundred thirty-one".