1032131221 has 8 divisors (see below), whose sum is σ = 1137110688. Its totient is φ = 929010000.

The previous prime is 1032131213. The next prime is 1032131227. The reversal of 1032131221 is 1221312301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1032131221 - 2³ = 1032131213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1032131195 and 1032131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1032131227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463395 + ... + 465616.

It is an arithmetic number, because the mean of its divisors is an integer number (142138836).

Almost surely, 2^1032131221 is an apocalyptic number.

1032131221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1032131221 is a deficient number, since it is larger than the sum of its proper divisors (104979467).

1032131221 is a wasteful number, since it uses less digits than its factorization.

1032131221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929123.

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

The square root of 1032131221 is about 32126.7991091550. The cubic root of 1032131221 is about 1010.5976990285.

Adding to 1032131221 its reverse (1221312301), we get a palindrome (2253443522).

The spelling of 1032131221 in words is "one billion, thirty-two million, one hundred thirty-one thousand, two hundred twenty-one".