321473335551343 has 2 divisors, whose sum is σ = 321473335551344. Its totient is φ = 321473335551342.

The previous prime is 321473335551323. The next prime is 321473335551349. The reversal of 321473335551343 is 343155533374123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321473335551343 - 2⁵ = 321473335551311 is a prime.

It is a super-5 number, since 5×321473335551343⁵ (a number of 74 digits) contains 55555 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321473335551349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160736667775671 + 160736667775672.

It is an arithmetic number, because the mean of its divisors is an integer number (160736667775672).

Almost surely, 2^{321473335551343} is an apocalyptic number.

321473335551343 is a deficient number, since it is larger than the sum of its proper divisors (1).

321473335551343 is an equidigital number, since it uses as much as digits as its factorization.

321473335551343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412000, while the sum is 52.

The spelling of 321473335551343 in words is "three hundred twenty-one trillion, four hundred seventy-three billion, three hundred thirty-five million, five hundred fifty-one thousand, three hundred forty-three".