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12103020323331 = 3719154611961929
BaseRepresentation
bin1011000000011111010000…
…1110100010001000000011
31120212001000021222202202020
42300013310032202020003
53041243441200321311
641424014545052523
72356262061220260
oct260076416421003
946761007882666
1012103020323331
1139469534a1593
121435791027143
1369a404b7b1a2
142dbb09c16267
1515ec623b5c06
hexb01f43a2203

12103020323331 has 32 divisors (see below), whose sum is σ = 19414631462400. Its totient is φ = 6551583886080.

The previous prime is 12103020323311. The next prime is 12103020323353. The reversal of 12103020323331 is 13332302030121.

It is not a de Polignac number, because 12103020323331 - 26 = 12103020323267 is a prime.

It is a super-2 number, since 2×121030203233312 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12103020323311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5187975 + ... + 7149903.

It is an arithmetic number, because the mean of its divisors is an integer number (606707233200).

Almost surely, 212103020323331 is an apocalyptic number.

12103020323331 is a deficient number, since it is larger than the sum of its proper divisors (7311611139069).

12103020323331 is a wasteful number, since it uses less digits than its factorization.

12103020323331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977419.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 12103020323331 its reverse (13332302030121), we get a palindrome (25435322353452).

The spelling of 12103020323331 in words is "twelve trillion, one hundred three billion, twenty million, three hundred twenty-three thousand, three hundred thirty-one".

Divisors: 1 3 7 19 21 57 133 399 15461 46383 108227 293759 324681 881277 1961929 2056313 5885787 6168939 13733503 37276651 41200509 111829953 260936557 782809671 30333384269 91000152807 212333689883 576334301111 637001069649 1729002903333 4034340107777 12103020323331