2231433021 has 16 divisors (see below), whose sum is σ = 3118181760. Its totient is φ = 1416719040.

The previous prime is 2231433007. The next prime is 2231433023. The reversal of 2231433021 is 1203341322.

It is not a de Polignac number, because 2231433021 - 2⁷ = 2231432893 is a prime.

It is a super-3 number, since 3×2231433021³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231433023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54810 + ... + 86411.

It is an arithmetic number, because the mean of its divisors is an integer number (194886360).

Almost surely, 2^2231433021 is an apocalyptic number.

It is an amenable number.

2231433021 is a deficient number, since it is larger than the sum of its proper divisors (886748739).

2231433021 is a wasteful number, since it uses less digits than its factorization.

2231433021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141476.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2231433021 is about 47238.0463292038. The cubic root of 2231433021 is about 1306.7563480186.

Adding to 2231433021 its reverse (1203341322), we get a palindrome (3434774343).

The spelling of 2231433021 in words is "two billion, two hundred thirty-one million, four hundred thirty-three thousand, twenty-one".