1233013121 has 2 divisors, whose sum is σ = 1233013122. Its totient is φ = 1233013120.

The previous prime is 1233013091. The next prime is 1233013129. The reversal of 1233013121 is 1213103321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 723879025 + 509134096 = 26905^2 + 22564^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233013121 - 2¹⁰ = 1233012097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1233013121.

It is not a weakly prime, because it can be changed into another prime (1233013129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616506560 + 616506561.

It is an arithmetic number, because the mean of its divisors is an integer number (616506561).

Almost surely, 2^1233013121 is an apocalyptic number.

It is an amenable number.

1233013121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233013121 is an equidigital number, since it uses as much as digits as its factorization.

1233013121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1233013121 is about 35114.2865654423. The cubic root of 1233013121 is about 1072.3154565719.

Adding to 1233013121 its reverse (1213103321), we get a palindrome (2446116442).

The spelling of 1233013121 in words is "one billion, two hundred thirty-three million, thirteen thousand, one hundred twenty-one".