4231121000 has 32 divisors (see below), whose sum is σ = 9900825480. Its totient is φ = 1692448000.

The previous prime is 4231120991. The next prime is 4231121003. The reversal of 4231121000 is 1211324.

It can be written as a sum of positive squares in 4 ways, for example, as 1430806276 + 2800314724 = 37826^2 + 52918^2 .

It is not an unprimeable number, because it can be changed into a prime (4231121003) 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, 2114561 + ... + 2116560.

Almost surely, 2^4231121000 is an apocalyptic number.

4231121000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4231121000 is an abundant number, since it is smaller than the sum of its proper divisors (5669704480).

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

4231121000 is a wasteful number, since it uses less digits than its factorization.

4231121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4231142 (or 4231128 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 4231121000 is about 65047.0675741805. The cubic root of 4231121000 is about 1617.4038843149.

Adding to 4231121000 its reverse (1211324), we get a palindrome (4232332324).

The spelling of 4231121000 in words is "four billion, two hundred thirty-one million, one hundred twenty-one thousand".