1233120121313 has 2 divisors, whose sum is σ = 1233120121314. Its totient is φ = 1233120121312.

The previous prime is 1233120121309. The next prime is 1233120121327. The reversal of 1233120121313 is 3131210213321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1063521937984 + 169598183329 = 1031272^2 + 411823^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233120121313 - 2² = 1233120121309 is a prime.

It is not a weakly prime, because it can be changed into another prime (1233120121333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616560060656 + 616560060657.

It is an arithmetic number, because the mean of its divisors is an integer number (616560060657).

Almost surely, 2^{1233120121313} is an apocalyptic number.

It is an amenable number.

1233120121313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233120121313 is an equidigital number, since it uses as much as digits as its factorization.

1233120121313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1233120121313 its reverse (3131210213321), we get a palindrome (4364330334634).

The spelling of 1233120121313 in words is "one trillion, two hundred thirty-three billion, one hundred twenty million, one hundred twenty-one thousand, three hundred thirteen".