1031121444 has 24 divisors (see below), whose sum is σ = 2411442880. Its totient is φ = 342922464.

The previous prime is 1031121437. The next prime is 1031121457. The reversal of 1031121444 is 4441211301.

It is a super-2 number, since 2×1031121444² = 2126422864553290272, 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 1031121444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92599 + ... + 103134.

Almost surely, 2^1031121444 is an apocalyptic number.

It is an amenable number.

1031121444 is an abundant number, since it is smaller than the sum of its proper divisors (1380321436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031121444 is a wasteful number, since it uses less digits than its factorization.

1031121444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196179 (or 196177 counting only the distinct ones).

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

The square root of 1031121444 is about 32111.0797700731. The cubic root of 1031121444 is about 1010.2680215401.

Adding to 1031121444 its reverse (4441211301), we get a palindrome (5472332745).

The spelling of 1031121444 in words is "one billion, thirty-one million, one hundred twenty-one thousand, four hundred forty-four".