321431150077775 has 12 divisors (see below), whose sum is σ = 398615959447992. Its totient is φ = 257118253383840.

The previous prime is 321431150077711. The next prime is 321431150077783. The reversal of 321431150077775 is 577770051134123.

It is not a de Polignac number, because 321431150077775 - 2⁶ = 321431150077711 is a prime.

It is a super-2 number, since 2×321431150077775² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 666421064 + ... + 666903213.

It is an arithmetic number, because the mean of its divisors is an integer number (33217996620666).

Almost surely, 2^{321431150077775} is an apocalyptic number.

321431150077775 is a deficient number, since it is larger than the sum of its proper divisors (77184809370217).

321431150077775 is a wasteful number, since it uses less digits than its factorization.

321431150077775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333333930 (or 1333333925 counting only the distinct ones).

The product of its (nonzero) digits is 4321800, while the sum is 53.

The spelling of 321431150077775 in words is "three hundred twenty-one trillion, four hundred thirty-one billion, one hundred fifty million, seventy-seven thousand, seven hundred seventy-five".