Search a number
-
+
1231031230202 = 23041202405661
BaseRepresentation
bin10001111010011111001…
…011011101111011111010
311100200111200102221020202
4101322133023131323322
5130132122443331302
62341310011322202
7154640046543644
oct21723713357372
94320450387222
101231031230202
11435094044694
1217a6b9a50362
138c116502b97
14438218cd894
152204e114202
hex11e9f2ddefa

1231031230202 has 8 divisors (see below), whose sum is σ = 1847154071412. Its totient is φ = 615313206400.

The previous prime is 1231031230199. The next prime is 1231031230349. The reversal of 1231031230202 is 2020321301321.

It can be written as a sum of positive squares in 2 ways, for example, as 978435527281 + 252595702921 = 989159^2 + 502589^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101196749 + ... + 101208912.

Almost surely, 21231031230202 is an apocalyptic number.

1231031230202 is a deficient number, since it is larger than the sum of its proper divisors (616122841210).

1231031230202 is a wasteful number, since it uses less digits than its factorization.

1231031230202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202408704.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1231031230202 its reverse (2020321301321), we get a palindrome (3251352531523).

The spelling of 1231031230202 in words is "one trillion, two hundred thirty-one billion, thirty-one million, two hundred thirty thousand, two hundred two".

Divisors: 1 2 3041 6082 202405661 404811322 615515615101 1231031230202