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223131202010121 = 3317234627972671
BaseRepresentation
bin110010101110111111001000…
…000010001011110000001001
31002021001010122010002112012110
4302232333020002023300021
5213221240200203310441
62110321020433332533
764666461123310536
oct6256771002136011
91067033563075173
10223131202010121
1165107458575189
12210383a4107149
139767249cc3712
143d15871b37d8d
151abe24bcb3b16
hexcaefc808bc09

223131202010121 has 8 divisors (see below), whose sum is σ = 298446781238784. Its totient is φ = 148284878727440.

The previous prime is 223131202010089. The next prime is 223131202010131. The reversal of 223131202010121 is 121010202131322.

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

It is a cyclic number.

It is not a de Polignac number, because 223131202010121 - 25 = 223131202010089 is a prime.

It is a super-3 number, since 3×2231312020101213 (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223131202010131) 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, 117313985385 + ... + 117313987286.

It is an arithmetic number, because the mean of its divisors is an integer number (37305847654848).

Almost surely, 2223131202010121 is an apocalyptic number.

It is an amenable number.

223131202010121 is a deficient number, since it is larger than the sum of its proper divisors (75315579228663).

223131202010121 is a wasteful number, since it uses less digits than its factorization.

223131202010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234627972991.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 223131202010121 its reverse (121010202131322), we get a palindrome (344141404141443).

The spelling of 223131202010121 in words is "two hundred twenty-three trillion, one hundred thirty-one billion, two hundred two million, ten thousand, one hundred twenty-one".

Divisors: 1 3 317 951 234627972671 703883918013 74377067336707 223131202010121