321553231263061 has 8 divisors (see below), whose sum is σ = 383467207469184. Its totient is φ = 263633705134800.

The previous prime is 321553231263053. The next prime is 321553231263083. The reversal of 321553231263061 is 160362132355123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 321553231263061 - 2³ = 321553231263053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321553231262999 and 321553231263017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321553231263161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 998612519290 + ... + 998612519611.

It is an arithmetic number, because the mean of its divisors is an integer number (47933400933648).

Almost surely, 2^{321553231263061} is an apocalyptic number.

It is an amenable number.

321553231263061 is a deficient number, since it is larger than the sum of its proper divisors (61913976206123).

321553231263061 is a wasteful number, since it uses less digits than its factorization.

321553231263061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997225038931.

The product of its (nonzero) digits is 583200, while the sum is 43.

The spelling of 321553231263061 in words is "three hundred twenty-one trillion, five hundred fifty-three billion, two hundred thirty-one million, two hundred sixty-three thousand, sixty-one".