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12031211030030 = 258211871378311
BaseRepresentation
bin1010111100010011110000…
…0011110100011000001110
31120121011122210010201001122
42233010330003310120032
53034104410010430110
641331021222440542
72351140424256113
oct257047403643016
946534583121048
1012031211030030
113919453a786a5
121423890293152
136936cc93b7aa
142d8456bc890a
1515ce5d013255
hexaf13c0f460e

12031211030030 has 32 divisors (see below), whose sum is σ = 21683993243328. Its totient is φ = 4806304441600.

The previous prime is 12031211029843. The next prime is 12031211030057. The reversal of 12031211030030 is 3003011213021.

It is a junction number, because it is equal to n+sod(n) for n = 12031211029990 and 12031211030008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153594575 + ... + 153672885.

It is an arithmetic number, because the mean of its divisors is an integer number (677624788854).

Almost surely, 212031211030030 is an apocalyptic number.

12031211030030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12031211030030 is a deficient number, since it is larger than the sum of its proper divisors (9652782213298).

12031211030030 is a wasteful number, since it uses less digits than its factorization.

12031211030030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97852.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12031211030030 its reverse (3003011213021), we get a palindrome (15034222243051).

The spelling of 12031211030030 in words is "twelve trillion, thirty-one billion, two hundred eleven million, thirty thousand, thirty".

Divisors: 1 2 5 10 821 1642 4105 8210 18713 37426 78311 93565 156622 187130 391555 783110 15363373 30726746 64293331 76816865 128586662 153633730 321466655 642933310 1465433743 2930867486 7327168715 14654337430 1203121103003 2406242206006 6015605515015 12031211030030