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110203031221 = 3110135197391
BaseRepresentation
bin110011010100010011…
…1001100111010110101
3101112110020110000211221
41212220213030322311
53301143433444341
6122343201230341
710650635211133
oct1465047147265
9345406400757
10110203031221
1142811813508
12194369323b1
13a5135a5b1a
145496154753
152ceed4eed1
hex19a89cceb5

110203031221 has 8 divisors (see below), whose sum is σ = 114884287488. Its totient is φ = 105592170000.

The previous prime is 110203031179. The next prime is 110203031231. The reversal of 110203031221 is 122130302011.

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 110203031221 - 27 = 110203031093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110203031195 and 110203031204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110203031231) 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, 17595565 + ... + 17601826.

It is an arithmetic number, because the mean of its divisors is an integer number (14360535936).

Almost surely, 2110203031221 is an apocalyptic number.

It is an amenable number.

110203031221 is a deficient number, since it is larger than the sum of its proper divisors (4681256267).

110203031221 is a wasteful number, since it uses less digits than its factorization.

110203031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35197523.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 110203031221 its reverse (122130302011), we get a palindrome (232333333232).

The spelling of 110203031221 in words is "one hundred ten billion, two hundred three million, thirty-one thousand, two hundred twenty-one".

Divisors: 1 31 101 3131 35197391 1091119121 3554936491 110203031221