1233415121 has 2 divisors, whose sum is σ = 1233415122. Its totient is φ = 1233415120.

The previous prime is 1233415111. The next prime is 1233415129. The reversal of 1233415121 is 1215143321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1111555600 + 121859521 = 33340^2 + 11039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1233415121 is a prime.

It is a super-2 number, since 2×1233415121² = 3042625721422889282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1233415129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616707560 + 616707561.

It is an arithmetic number, because the mean of its divisors is an integer number (616707561).

Almost surely, 2^1233415121 is an apocalyptic number.

It is an amenable number.

1233415121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233415121 is an equidigital number, since it uses as much as digits as its factorization.

1233415121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 23.

The square root of 1233415121 is about 35120.0102648049. The cubic root of 1233415121 is about 1072.4319797911.

Adding to 1233415121 its reverse (1215143321), we get a palindrome (2448558442).

The spelling of 1233415121 in words is "one billion, two hundred thirty-three million, four hundred fifteen thousand, one hundred twenty-one".