321031420055 has 16 divisors (see below), whose sum is σ = 387811404480. Its totient is φ = 255110349312.

The previous prime is 321031420033. The next prime is 321031420063. The reversal of 321031420055 is 550024130123.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 321031420055 - 2⁶ = 321031419991 is a prime.

It is a super-2 number, since 2×321031420055² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2543807 + ... + 2667023.

It is an arithmetic number, because the mean of its divisors is an integer number (24238212780).

Almost surely, 2^321031420055 is an apocalyptic number.

321031420055 is a deficient number, since it is larger than the sum of its proper divisors (66779984425).

321031420055 is a wasteful number, since it uses less digits than its factorization.

321031420055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126698.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 321031420055 its reverse (550024130123), we get a palindrome (871055550178).

The spelling of 321031420055 in words is "three hundred twenty-one billion, thirty-one million, four hundred twenty thousand, fifty-five".