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121141213 = 2393891303
BaseRepresentation
bin1110011100001…
…11011111011101
322102221121111121
413032013133131
5222003004323
620004250541
73000453244
oct716073735
9272847447
10121141213
1162421206
12346a0a51
131c1364bb
141213595b
15a97da5d
hex73877dd

121141213 has 8 divisors (see below), whose sum is σ = 122054400. Its totient is φ = 120231888.

The previous prime is 121141171. The next prime is 121141217. The reversal of 121141213 is 312141121.

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 121141213 - 225 = 87586781 is a prime.

It is a super-3 number, since 3×1211412133 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121141217) 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, 92320 + ... + 93622.

It is an arithmetic number, because the mean of its divisors is an integer number (15256800).

Almost surely, 2121141213 is an apocalyptic number.

It is an amenable number.

121141213 is a deficient number, since it is larger than the sum of its proper divisors (913187).

121141213 is a wasteful number, since it uses less digits than its factorization.

121141213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931.

The product of its digits is 48, while the sum is 16.

The square root of 121141213 is about 11006.4169010628. The cubic root of 121141213 is about 494.8010804992.

Adding to 121141213 its reverse (312141121), we get a palindrome (433282334).

It can be divided in two parts, 1211 and 41213, that added together give a palindrome (42424).

The spelling of 121141213 in words is "one hundred twenty-one million, one hundred forty-one thousand, two hundred thirteen".

Divisors: 1 239 389 1303 92971 311417 506867 121141213