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230331031341021 = 32131968641293513
BaseRepresentation
bin110100010111110000011111…
…010011011100011111011101
31010012112102122121012022002100
4310113300133103130133131
5220142220423010403041
62133512340503115313
766341603451001362
oct6427603723343735
91105472577168070
10230331031341021
1167432929524486
12219bb844442b39
139b6a17a483480
1440c411d506469
151b9668a9736b6
hexd17c1f4dc7dd

230331031341021 has 12 divisors (see below), whose sum is σ = 358292715419548. Its totient is φ = 141742173132864.

The previous prime is 230331031340911. The next prime is 230331031341041. The reversal of 230331031341021 is 120143130133032.

230331031341021 is a `hidden beast` number, since 2 + 3 + 0 + 3 + 310 + 3 + 1 + 341 + 0 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24766408215396 + 205564623125625 = 4976586^2 + 14337525^2 .

It is not a de Polignac number, because 230331031341021 - 223 = 230331022952413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230331031341041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 984320646640 + ... + 984320646873.

Almost surely, 2230331031341021 is an apocalyptic number.

It is an amenable number.

230331031341021 is a deficient number, since it is larger than the sum of its proper divisors (127961684078527).

230331031341021 is a wasteful number, since it uses less digits than its factorization.

230331031341021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968641293532 (or 1968641293529 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 230331031341021 its reverse (120143130133032), we get a palindrome (350474161474053).

The spelling of 230331031341021 in words is "two hundred thirty trillion, three hundred thirty-one billion, thirty-one million, three hundred forty-one thousand, twenty-one".

Divisors: 1 3 9 13 39 117 1968641293513 5905923880539 17717771641617 25592336815669 76777010447007 230331031341021