4012033121 has 2 divisors, whose sum is σ = 4012033122. Its totient is φ = 4012033120.

The previous prime is 4012033111. The next prime is 4012033213. The reversal of 4012033121 is 1213302104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3911251600 + 100781521 = 62540^2 + 10039^2 .

It is a cyclic number.

It is not a de Polignac number, because 4012033121 - 2¹⁰ = 4012032097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4012033121.

It is not a weakly prime, because it can be changed into another prime (4012033111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006016560 + 2006016561.

It is an arithmetic number, because the mean of its divisors is an integer number (2006016561).

Almost surely, 2^4012033121 is an apocalyptic number.

It is an amenable number.

4012033121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012033121 is an equidigital number, since it uses as much as digits as its factorization.

4012033121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 4012033121 is about 63340.6119405236. The cubic root of 4012033121 is about 1588.9912408658.

Adding to 4012033121 its reverse (1213302104), we get a palindrome (5225335225).

The spelling of 4012033121 in words is "four billion, twelve million, thirty-three thousand, one hundred twenty-one".