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20314231322131 = 155988671469527
BaseRepresentation
bin1001001111001110001101…
…00010101011011000010011
32122221000120201010121021201
410213213012202223120103
510130312021204302011
6111112121245532031
74164440406133315
oct447470642533023
978830521117251
1020314231322131
116522242a9928a
12234104ab74017
13b448156244c6
145032dd48d7b5
15253646b1ccc1
hex1279c68ab613

20314231322131 has 8 divisors (see below), whose sum is σ = 20329567914240. Its totient is φ = 20298897689928.

The previous prime is 20314231322129. The next prime is 20314231322141. The reversal of 20314231322131 is 13122313241302.

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 20314231322131 - 21 = 20314231322129 is a prime.

It is a super-2 number, since 2×203142313221312 (a number of 27 digits) contains 22 as substring.

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 20314231322131.

It is not an unprimeable number, because it can be changed into a prime (20314231322141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13088890 + ... + 14558416.

It is an arithmetic number, because the mean of its divisors is an integer number (2541195989280).

Almost surely, 220314231322131 is an apocalyptic number.

20314231322131 is a deficient number, since it is larger than the sum of its proper divisors (15336592109).

20314231322131 is a wasteful number, since it uses less digits than its factorization.

20314231322131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479953.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 20314231322131 its reverse (13122313241302), we get a palindrome (33436544563433).

The spelling of 20314231322131 in words is "twenty trillion, three hundred fourteen billion, two hundred thirty-one million, three hundred twenty-two thousand, one hundred thirty-one".

Divisors: 1 1559 8867 1469527 13823653 2290992593 13030295909 20314231322131