1421031233 has 4 divisors (see below), whose sum is σ = 1470032340. Its totient is φ = 1372030128.

The previous prime is 1421031221. The next prime is 1421031239. The reversal of 1421031233 is 3321301241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 313006864 + 1108024369 = 17692^2 + 33287^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421031233 - 2⁴ = 1421031217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421031239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24500510 + ... + 24500567.

It is an arithmetic number, because the mean of its divisors is an integer number (367508085).

Almost surely, 2^1421031233 is an apocalyptic number.

It is an amenable number.

1421031233 is a deficient number, since it is larger than the sum of its proper divisors (49001107).

1421031233 is an equidigital number, since it uses as much as digits as its factorization.

1421031233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49001106.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1421031233 is about 37696.5679207007. The cubic root of 1421031233 is about 1124.2628871490.

Adding to 1421031233 its reverse (3321301241), we get a palindrome (4742332474).

The spelling of 1421031233 in words is "one billion, four hundred twenty-one million, thirty-one thousand, two hundred thirty-three".