321213011029 has 2 divisors, whose sum is σ = 321213011030. Its totient is φ = 321213011028.

The previous prime is 321213010957. The next prime is 321213011059. The reversal of 321213011029 is 920110312123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204283208529 + 116929802500 = 451977^2 + 341950^2 .

It is a cyclic number.

It is not a de Polignac number, because 321213011029 - 2¹¹ = 321213008981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321213010994 and 321213011012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321213011059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160606505514 + 160606505515.

It is an arithmetic number, because the mean of its divisors is an integer number (160606505515).

Almost surely, 2^321213011029 is an apocalyptic number.

It is an amenable number.

321213011029 is a deficient number, since it is larger than the sum of its proper divisors (1).

321213011029 is an equidigital number, since it uses as much as digits as its factorization.

321213011029 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 25.

The spelling of 321213011029 in words is "three hundred twenty-one billion, two hundred thirteen million, eleven thousand, twenty-nine".