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20323131301 = 111847557391
BaseRepresentation
bin10010111011010110…
…100101111110100101
31221110100120001001201
4102323112211332211
5313110210200201
613200351122501
71316424523444
oct227326457645
957410501051
1020323131301
118689972390
123b32213431
131bbb6141a5
14dab19ad5b
157de2e8801
hex4bb5a5fa5

20323131301 has 4 divisors (see below), whose sum is σ = 22170688704. Its totient is φ = 18475573900.

The previous prime is 20323131277. The next prime is 20323131319. The reversal of 20323131301 is 10313132302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20323131301 - 231 = 18175647653 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 (20323131341) 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, 923778685 + ... + 923778706.

It is an arithmetic number, because the mean of its divisors is an integer number (5542672176).

Almost surely, 220323131301 is an apocalyptic number.

It is an amenable number.

20323131301 is a deficient number, since it is larger than the sum of its proper divisors (1847557403).

20323131301 is a wasteful number, since it uses less digits than its factorization.

20323131301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847557402.

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

Adding to 20323131301 its reverse (10313132302), we get a palindrome (30636263603).

The spelling of 20323131301 in words is "twenty billion, three hundred twenty-three million, one hundred thirty-one thousand, three hundred one".

Divisors: 1 11 1847557391 20323131301