1143011031 has 8 divisors (see below), whose sum is σ = 1613662704. Its totient is φ = 717183360.

The previous prime is 1143010991. The next prime is 1143011033. The reversal of 1143011031 is 1301103411.

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

It is not a de Polignac number, because 1143011031 - 2⁷ = 1143010903 is a prime.

It is a super-2 number, since 2×1143011031² = 2612948433975365922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1143011031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143011033) 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, 11205940 + ... + 11206041.

It is an arithmetic number, because the mean of its divisors is an integer number (201707838).

Almost surely, 2^1143011031 is an apocalyptic number.

1143011031 is a deficient number, since it is larger than the sum of its proper divisors (470651673).

1143011031 is a wasteful number, since it uses less digits than its factorization.

1143011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22412001.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1143011031 is about 33808.4461488546. The cubic root of 1143011031 is about 1045.5628420233.

Adding to 1143011031 its reverse (1301103411), we get a palindrome (2444114442).

The spelling of 1143011031 in words is "one billion, one hundred forty-three million, eleven thousand, thirty-one".