321121012440407 has 2 divisors, whose sum is σ = 321121012440408. Its totient is φ = 321121012440406.

The previous prime is 321121012440383. The next prime is 321121012440439. The reversal of 321121012440407 is 704044210121123.

It is an a-pointer prime, because the next prime (321121012440439) can be obtained adding 321121012440407 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321121012440407 - 2⁶ = 321121012440343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321121012440467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160560506220203 + 160560506220204.

It is an arithmetic number, because the mean of its divisors is an integer number (160560506220204).

Almost surely, 2^{321121012440407} is an apocalyptic number.

321121012440407 is a deficient number, since it is larger than the sum of its proper divisors (1).

321121012440407 is an equidigital number, since it uses as much as digits as its factorization.

321121012440407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 321121012440407 in words is "three hundred twenty-one trillion, one hundred twenty-one billion, twelve million, four hundred forty thousand, four hundred seven".