1233427284121 has 2 divisors, whose sum is σ = 1233427284122. Its totient is φ = 1233427284120.

The previous prime is 1233427284113. The next prime is 1233427284149. The reversal of 1233427284121 is 1214827243321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1230300237721 + 3127046400 = 1109189^2 + 55920^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233427284121 - 2³ = 1233427284113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1233427282121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616713642060 + 616713642061.

It is an arithmetic number, because the mean of its divisors is an integer number (616713642061).

Almost surely, 2^{1233427284121} is an apocalyptic number.

It is an amenable number.

1233427284121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233427284121 is an equidigital number, since it uses as much as digits as its factorization.

1233427284121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 40.

The spelling of 1233427284121 in words is "one trillion, two hundred thirty-three billion, four hundred twenty-seven million, two hundred eighty-four thousand, one hundred twenty-one".