1233212123321 has 2 divisors, whose sum is σ = 1233212123322. Its totient is φ = 1233212123320.

The previous prime is 1233212123317. The next prime is 1233212123357.

1233212123321 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 854450653225 + 378761470096 = 924365^2 + 615436^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 1233212123321 - 2² = 1233212123317 is a prime.

It is a super-2 number, since 2×1233212123321² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1233212183321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616606061660 + 616606061661.

It is an arithmetic number, because the mean of its divisors is an integer number (616606061661).

Almost surely, 2^{1233212123321} is an apocalyptic number.

It is an amenable number.

1233212123321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233212123321 is an equidigital number, since it uses as much as digits as its factorization.

1233212123321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The spelling of 1233212123321 in words is "one trillion, two hundred thirty-three billion, two hundred twelve million, one hundred twenty-three thousand, three hundred twenty-one".