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20010222300031 = 73274112634247
BaseRepresentation
bin1001000110010111111100…
…01100010010101101111111
32121211221212210112011002121
410203023332030102231333
510110321413402100111
6110320322541303411
74133455651106605
oct443137614225577
977757783464077
1020010222300031
116415318906387
1222b2146b64b67
13b21c57065792
144d26ddb29875
1524a7a2505871
hex1232fe312b7f

20010222300031 has 4 divisors (see below), whose sum is σ = 20284334934352. Its totient is φ = 19736109665712.

The previous prime is 20010222300023. The next prime is 20010222300053. The reversal of 20010222300031 is 13000322201002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20010222300031 - 23 = 20010222300023 is a prime.

It is a super-2 number, since 2×200102223000312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010222299978 and 20010222300014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010222300091) 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, 137056317051 + ... + 137056317196.

It is an arithmetic number, because the mean of its divisors is an integer number (5071083733588).

Almost surely, 220010222300031 is an apocalyptic number.

20010222300031 is a deficient number, since it is larger than the sum of its proper divisors (274112634321).

20010222300031 is an equidigital number, since it uses as much as digits as its factorization.

20010222300031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274112634320.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20010222300031 its reverse (13000322201002), we get a palindrome (33010544501033).

The spelling of 20010222300031 in words is "twenty trillion, ten billion, two hundred twenty-two million, three hundred thousand, thirty-one".

Divisors: 1 73 274112634247 20010222300031