1021131232 has 48 divisors (see below), whose sum is σ = 2195690112. Its totient is φ = 463605120.

The previous prime is 1021131211. The next prime is 1021131247. The reversal of 1021131232 is 2321311201.

It is a super-3 number, since 3×1021131232³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 571813 + ... + 573595.

It is an arithmetic number, because the mean of its divisors is an integer number (45743544).

Almost surely, 2^1021131232 is an apocalyptic number.

It is an amenable number.

1021131232 is an abundant number, since it is smaller than the sum of its proper divisors (1174558880).

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

1021131232 is a wasteful number, since it uses less digits than its factorization.

1021131232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3431 (or 3423 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1021131232 is about 31955.1440616374. The cubic root of 1021131232 is about 1006.9947040413.

Adding to 1021131232 its reverse (2321311201), we get a palindrome (3342442433).

The spelling of 1021131232 in words is "one billion, twenty-one million, one hundred thirty-one thousand, two hundred thirty-two".