1031143211 has 12 divisors (see below), whose sum is σ = 1270052568. Its totient is φ = 831845952.

The previous prime is 1031143189. The next prime is 1031143229. The reversal of 1031143211 is 1123411301.

It is not a de Polignac number, because 1031143211 - 2⁶ = 1031143147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031143211.

It is not an unprimeable number, because it can be changed into a prime (1031143511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 618101 + ... + 619766.

It is an arithmetic number, because the mean of its divisors is an integer number (105837714).

Almost surely, 2^1031143211 is an apocalyptic number.

1031143211 is a deficient number, since it is larger than the sum of its proper divisors (238909357).

1031143211 is a wasteful number, since it uses less digits than its factorization.

1031143211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237898 (or 1237891 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1031143211 is about 32111.4187011412. The cubic root of 1031143211 is about 1010.2751304179.

Adding to 1031143211 its reverse (1123411301), we get a palindrome (2154554512).

The spelling of 1031143211 in words is "one billion, thirty-one million, one hundred forty-three thousand, two hundred eleven".