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20211113131030 = 2519205549517513
BaseRepresentation
bin1001001100001110001000…
…01101111111110000010110
32122120011102020001201222201
410212013010031333300112
510122114324430143110
6110552505053115114
74154130140023543
oct446070415776026
978504366051881
1020211113131030
116492537507048
122325070a88a9a
13b37b90abaa93
144dc31a25bbca
15250b0dc94b3a
hex1261c437fc16

20211113131030 has 32 divisors (see below), whose sum is σ = 38295000972000. Its totient is φ = 7658896073472.

The previous prime is 20211113130997. The next prime is 20211113131039. The reversal of 20211113131030 is 3013131111202.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 20211113130989 and 20211113131007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211113131039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38795554 + ... + 39313066.

It is an arithmetic number, because the mean of its divisors is an integer number (1196718780375).

Almost surely, 220211113131030 is an apocalyptic number.

20211113131030 is a deficient number, since it is larger than the sum of its proper divisors (18083887840970).

20211113131030 is a wasteful number, since it uses less digits than its factorization.

20211113131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723088.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 20211113131030 its reverse (3013131111202), we get a palindrome (23224244242232).

The spelling of 20211113131030 in words is "twenty trillion, two hundred eleven billion, one hundred thirteen million, one hundred thirty-one thousand, thirty".

Divisors: 1 2 5 10 19 38 95 190 205549 411098 517513 1027745 1035026 2055490 2587565 3905431 5175130 7810862 9832747 19527155 19665494 39054310 49163735 98327470 106374279637 212748559274 531871398185 1063742796370 2021111313103 4042222626206 10105556565515 20211113131030