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1220010313133 = 1973618352921
BaseRepresentation
bin10001110000001110010…
…010000000010110101101
311022122001121122100012002
4101300032102000112231
5124442040120010013
62332244235022045
7154066664362253
oct21601622002655
94278047570162
101220010313133
1143044901a567
12178542b9a925
138b07b163891
1443097d365d3
1521b067e2358
hex11c0e4805ad

1220010313133 has 4 divisors (see below), whose sum is σ = 1220628668028. Its totient is φ = 1219391958240.

The previous prime is 1220010313099. The next prime is 1220010313169. The reversal of 1220010313133 is 3313130100221.

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 628806178729 + 591204134404 = 792973^2 + 768898^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220010313133 - 26 = 1220010313069 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 (1220010313933) 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, 309174488 + ... + 309178433.

It is an arithmetic number, because the mean of its divisors is an integer number (305157167007).

Almost surely, 21220010313133 is an apocalyptic number.

It is an amenable number.

1220010313133 is a deficient number, since it is larger than the sum of its proper divisors (618354895).

1220010313133 is an equidigital number, since it uses as much as digits as its factorization.

1220010313133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618354894.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1220010313133 its reverse (3313130100221), we get a palindrome (4533140413354).

The spelling of 1220010313133 in words is "one trillion, two hundred twenty billion, ten million, three hundred thirteen thousand, one hundred thirty-three".

Divisors: 1 1973 618352921 1220010313133