Search a number
-
+
1213012210301 = 1609753891989
BaseRepresentation
bin10001101001101101001…
…010010111001001111101
311021221222220110212211022
4101221231022113021331
5124333222111212201
62325130005233525
7153431400444143
oct21515512271175
94257886425738
101213012210301
11428487851301
1217710b4028a5
138a504373328
14429d2751593
152184725041b
hex11a6d29727d

1213012210301 has 4 divisors (see below), whose sum is σ = 1213766103900. Its totient is φ = 1212258316704.

The previous prime is 1213012210231. The next prime is 1213012210439. The reversal of 1213012210301 is 1030122103121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1196551576900 + 16460633401 = 1093870^2 + 128299^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213012210301 - 214 = 1213012193917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1213012210301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213012210901) 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, 376944386 + ... + 376947603.

It is an arithmetic number, because the mean of its divisors is an integer number (303441525975).

Almost surely, 21213012210301 is an apocalyptic number.

It is an amenable number.

1213012210301 is a deficient number, since it is larger than the sum of its proper divisors (753893599).

1213012210301 is an equidigital number, since it uses as much as digits as its factorization.

1213012210301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753893598.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1213012210301 its reverse (1030122103121), we get a palindrome (2243134313422).

The spelling of 1213012210301 in words is "one trillion, two hundred thirteen billion, twelve million, two hundred ten thousand, three hundred one".

Divisors: 1 1609 753891989 1213012210301