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223031302023121 = 1303171167538007
BaseRepresentation
bin110010101101100010000101…
…100001111110011111010001
31002020200120202220122100222221
4302231202011201332133101
5213213121101304214441
62110203055442101041
764656323402400244
oct6255420541763721
91066616686570887
10223031302023121
116507905363a359
1221020b6394a781
13975a9b9130687
143d10ab60ad25b
151abb8517328d1
hexcad88587e7d1

223031302023121 has 4 divisors (see below), whose sum is σ = 223202469562432. Its totient is φ = 222860134483812.

The previous prime is 223031302023053. The next prime is 223031302023133. The reversal of 223031302023121 is 121320203130322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223031302023121 - 29 = 223031302022609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223031302023721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85583767701 + ... + 85583770306.

It is an arithmetic number, because the mean of its divisors is an integer number (55800617390608).

Almost surely, 2223031302023121 is an apocalyptic number.

It is an amenable number.

223031302023121 is a deficient number, since it is larger than the sum of its proper divisors (171167539311).

223031302023121 is a wasteful number, since it uses less digits than its factorization.

223031302023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171167539310.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 223031302023121 its reverse (121320203130322), we get a palindrome (344351505153443).

The spelling of 223031302023121 in words is "two hundred twenty-three trillion, thirty-one billion, three hundred two million, twenty-three thousand, one hundred twenty-one".

Divisors: 1 1303 171167538007 223031302023121