321154451420351 has 16 divisors (see below), whose sum is σ = 343396797891840. Its totient is φ = 299460505760640.

The previous prime is 321154451420347. The next prime is 321154451420423. The reversal of 321154451420351 is 153024154451123.

It is not a de Polignac number, because 321154451420351 - 2² = 321154451420347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321154451420299 and 321154451420308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321154451420051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199932365 + ... + 201532278.

It is an arithmetic number, because the mean of its divisors is an integer number (21462299868240).

Almost surely, 2^{321154451420351} is an apocalyptic number.

321154451420351 is a deficient number, since it is larger than the sum of its proper divisors (22242346471489).

321154451420351 is a wasteful number, since it uses less digits than its factorization.

321154451420351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401465326.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 321154451420351 in words is "three hundred twenty-one trillion, one hundred fifty-four billion, four hundred fifty-one million, four hundred twenty thousand, three hundred fifty-one".