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131223022103022 = 23739130322712761
BaseRepresentation
bin11101110101100010111101…
…100111100110100111101110
3122012121210120000212101222120
4131311202331213212213232
5114144424222124244042
61143031005114053410
736432356550102423
oct3565427547464756
9565553500771876
10131223022103022
11388a240a000043
1212873a9871a266
13582b37c69a755
14245932a0c9d4a
15102862a4acdec
hex7758bd9e69ee

131223022103022 has 32 divisors (see below), whose sum is σ = 263002881834240. Its totient is φ = 43648291955520.

The previous prime is 131223022102847. The next prime is 131223022103029. The reversal of 131223022103022 is 220301220322131.

It is a junction number, because it is equal to n+sod(n) for n = 131223022102983 and 131223022103001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131223022103029) 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, 5578879 + ... + 17133882.

It is an arithmetic number, because the mean of its divisors is an integer number (8218840057320).

Almost surely, 2131223022103022 is an apocalyptic number.

131223022103022 is an abundant number, since it is smaller than the sum of its proper divisors (131779859731218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131223022103022 is a wasteful number, since it uses less digits than its factorization.

131223022103022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22714808.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 131223022103022 its reverse (220301220322131), we get a palindrome (351524242425153).

The spelling of 131223022103022 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, twenty-two million, one hundred three thousand, twenty-two".

Divisors: 1 2 3 6 739 1303 1478 2217 2606 3909 4434 7818 962917 1925834 2888751 5777502 22712761 45425522 68138283 136276566 16784730379 29594727583 33569460758 50354191137 59189455166 88784182749 100708382274 177568365498 21870503683837 43741007367674 65611511051511 131223022103022