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121012301 = 431280771
BaseRepresentation
bin1110011011010…
…00000001001101
322102201001200002
413031220001031
5221434343201
620001414045
72666405354
oct715500115
9272631602
10121012301
1162343373
123463a325
131c0bc917
141210099b
15a95576b
hex736804d

121012301 has 4 divisors (see below), whose sum is σ = 121293504. Its totient is φ = 120731100.

The previous prime is 121012291. The next prime is 121012327. The reversal of 121012301 is 103210121.

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 121012301 - 222 = 116817997 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012201) 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, 139955 + ... + 140816.

It is an arithmetic number, because the mean of its divisors is an integer number (30323376).

Almost surely, 2121012301 is an apocalyptic number.

It is an amenable number.

121012301 is a deficient number, since it is larger than the sum of its proper divisors (281203).

121012301 is an equidigital number, since it uses as much as digits as its factorization.

121012301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281202.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 121012301 is about 11000.5591221537. The cubic root of 121012301 is about 494.6255045893.

Adding to 121012301 its reverse (103210121), we get a palindrome (224222422).

The spelling of 121012301 in words is "one hundred twenty-one million, twelve thousand, three hundred one".

Divisors: 1 431 280771 121012301