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121201141 = 148381727
BaseRepresentation
bin1110011100101…
…10000111110101
322110001122201011
413032112013311
5222011414031
620005432221
73001123045
oct716260765
9273048634
10121201141
1162462236
123470b671
131c157869
141214d725
15a9916b1
hex73961f5

121201141 has 4 divisors (see below), whose sum is σ = 121284352. Its totient is φ = 121117932.

The previous prime is 121201127. The next prime is 121201153. The reversal of 121201141 is 141102121.

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 121201141 - 215 = 121168373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201541) 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, 39381 + ... + 42346.

It is an arithmetic number, because the mean of its divisors is an integer number (30321088).

Almost surely, 2121201141 is an apocalyptic number.

It is an amenable number.

121201141 is a deficient number, since it is larger than the sum of its proper divisors (83211).

121201141 is an equidigital number, since it uses as much as digits as its factorization.

121201141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83210.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 121201141 is about 11009.1389763233. The cubic root of 121201141 is about 494.8826589869.

Adding to 121201141 its reverse (141102121), we get a palindrome (262303262).

The spelling of 121201141 in words is "one hundred twenty-one million, two hundred one thousand, one hundred forty-one".

Divisors: 1 1483 81727 121201141