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130021203133 = 449289579517
BaseRepresentation
bin111100100010111011…
…1100001110010111101
3110102121101211110212001
41321011313201302331
54112240412000013
6135421513342301
712252021664033
oct1710567416275
9412541743761
10130021203133
1150161641388
1221247a07991
13c3513b9773
146416228553
1535aeb50ddd
hex1e45de1cbd

130021203133 has 4 divisors (see below), whose sum is σ = 130310783100. Its totient is φ = 129731623168.

The previous prime is 130021203097. The next prime is 130021203157. The reversal of 130021203133 is 331302120031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331302120031 = 2178715206413.

It can be written as a sum of positive squares in 2 ways, for example, as 54066945529 + 75954257604 = 232523^2 + 275598^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130021203133 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 130021203133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130021207133) 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, 144789310 + ... + 144790207.

It is an arithmetic number, because the mean of its divisors is an integer number (32577695775).

Almost surely, 2130021203133 is an apocalyptic number.

It is an amenable number.

130021203133 is a deficient number, since it is larger than the sum of its proper divisors (289579967).

130021203133 is an equidigital number, since it uses as much as digits as its factorization.

130021203133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289579966.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 130021203133 its reverse (331302120031), we get a palindrome (461323323164).

The spelling of 130021203133 in words is "one hundred thirty billion, twenty-one million, two hundred three thousand, one hundred thirty-three".

Divisors: 1 449 289579517 130021203133