2230778028321 has 6 divisors (see below), whose sum is σ = 3222234929810. Its totient is φ = 1487185352208.

The previous prime is 2230778028307. The next prime is 2230778028343. The reversal of 2230778028321 is 1238208770322.

2230778028321 is a `hidden beast` number, since 2 + 230 + 7 + 78 + 0 + 28 + 321 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2122589661921 + 108188366400 = 1456911^2 + 328920^2 .

It is not a de Polignac number, because 2230778028321 - 2⁹ = 2230778027809 is a prime.

It is a super-3 number, since 3×2230778028321³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2230778018321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123932112676 + ... + 123932112693.

Almost surely, 2^{2230778028321} is an apocalyptic number.

It is an amenable number.

2230778028321 is a deficient number, since it is larger than the sum of its proper divisors (991456901489).

2230778028321 is a wasteful number, since it uses less digits than its factorization.

2230778028321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247864225375 (or 247864225372 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 2230778028321 in words is "two trillion, two hundred thirty billion, seven hundred seventy-eight million, twenty-eight thousand, three hundred twenty-one".