1031144421 has 32 divisors (see below), whose sum is σ = 1488384000. Its totient is φ = 632923200.

The previous prime is 1031144407. The next prime is 1031144423. The reversal of 1031144421 is 1244411301.

It is not a de Polignac number, because 1031144421 - 2⁷ = 1031144293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031144423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 403255 + ... + 405803.

It is an arithmetic number, because the mean of its divisors is an integer number (46512000).

Almost surely, 2^1031144421 is an apocalyptic number.

It is an amenable number.

1031144421 is a deficient number, since it is larger than the sum of its proper divisors (457239579).

1031144421 is a wasteful number, since it uses less digits than its factorization.

1031144421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1031144421 is about 32111.4375417856. The cubic root of 1031144421 is about 1010.2755255885.

Adding to 1031144421 its reverse (1244411301), we get a palindrome (2275555722).

The spelling of 1031144421 in words is "one billion, thirty-one million, one hundred forty-four thousand, four hundred twenty-one".