1031223132 has 18 divisors (see below), whose sum is σ = 2606703008. Its totient is φ = 343741032.

The previous prime is 1031223121. The next prime is 1031223139. The reversal of 1031223132 is 2313221301.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1031223132² = 2126842295943778848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031223139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14322508 + ... + 14322579.

Almost surely, 2^1031223132 is an apocalyptic number.

1031223132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1031223132 is an abundant number, since it is smaller than the sum of its proper divisors (1575479876).

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

1031223132 is a wasteful number, since it uses less digits than its factorization.

1031223132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28645097 (or 28645092 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1031223132 is about 32112.6631097454. The cubic root of 1031223132 is about 1010.3012309350.

Adding to 1031223132 its reverse (2313221301), we get a palindrome (3344444433).

The spelling of 1031223132 in words is "one billion, thirty-one million, two hundred twenty-three thousand, one hundred thirty-two".