1012001233 has 4 divisors (see below), whose sum is σ = 1014901300. Its totient is φ = 1009101168.

The previous prime is 1012001201. The next prime is 1012001257. The reversal of 1012001233 is 3321002101.

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 849897409 + 162103824 = 29153^2 + 12732^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012001233 - 2⁵ = 1012001201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012001033) 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, 1449510 + ... + 1450207.

It is an arithmetic number, because the mean of its divisors is an integer number (253725325).

Almost surely, 2^1012001233 is an apocalyptic number.

It is an amenable number.

1012001233 is a deficient number, since it is larger than the sum of its proper divisors (2900067).

1012001233 is an equidigital number, since it uses as much as digits as its factorization.

1012001233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900066.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1012001233 is about 31811.9668206793. The cubic root of 1012001233 is about 1003.9845135651.

Adding to 1012001233 its reverse (3321002101), we get a palindrome (4333003334).

The spelling of 1012001233 in words is "one billion, twelve million, one thousand, two hundred thirty-three".