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20203331331 = 350811325417
BaseRepresentation
bin10010110100001101…
…100101111100000011
31221011000010120101210
4102310031211330003
5312334023100311
613140431301203
71313441324421
oct226415457403
957130116353
1020203331331
118628287947
123aba07a803
131b9c85a331
14d992d4111
157d3a323a6
hex4b4365f03

20203331331 has 8 divisors (see below), whose sum is σ = 26943097104. Its totient is φ = 13466226560.

The previous prime is 20203331329. The next prime is 20203331363. The reversal of 20203331331 is 13313330202.

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

It is a cyclic number.

It is not a de Polignac number, because 20203331331 - 21 = 20203331329 is a prime.

It is a super-2 number, since 2×202033313312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20203331298 and 20203331307.

It is not an unprimeable number, because it can be changed into a prime (20203330331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647466 + ... + 677951.

It is an arithmetic number, because the mean of its divisors is an integer number (3367887138).

Almost surely, 220203331331 is an apocalyptic number.

20203331331 is a deficient number, since it is larger than the sum of its proper divisors (6739765773).

20203331331 is a wasteful number, since it uses less digits than its factorization.

20203331331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330501.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20203331331 its reverse (13313330202), we get a palindrome (33516661533).

The spelling of 20203331331 in words is "twenty billion, two hundred three million, three hundred thirty-one thousand, three hundred thirty-one".

Divisors: 1 3 5081 15243 1325417 3976251 6734443777 20203331331