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1031213123124 = 223538911594597
BaseRepresentation
bin11110000000110010001…
…01111000011000110100
310122120202000102100221020
433000121011320120310
5113343411024414444
62105422140021140
7134334264631002
oct17003105703064
93576660370836
101031213123124
11368375a19318
12147a332317b0
1376320a9b372
1437ca7a39a72
151bc56b1e119
hexf019178634

1031213123124 has 24 divisors (see below), whose sum is σ = 2406210111648. Its totient is φ = 343731113760.

The previous prime is 1031213123123. The next prime is 1031213123153. The reversal of 1031213123124 is 4213213121301.

It is a junction number, because it is equal to n+sod(n) for n = 1031213123094 and 1031213123103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031213123123) 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 7 ways as a sum of consecutive naturals, for example, 150607 + ... + 1443990.

It is an arithmetic number, because the mean of its divisors is an integer number (100258754652).

Almost surely, 21031213123124 is an apocalyptic number.

It is an amenable number.

1031213123124 is an abundant number, since it is smaller than the sum of its proper divisors (1374996988524).

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

1031213123124 is a wasteful number, since it uses less digits than its factorization.

1031213123124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648495 (or 1648493 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1031213123124 its reverse (4213213121301), we get a palindrome (5244426244425).

The spelling of 1031213123124 in words is "one trillion, thirty-one billion, two hundred thirteen million, one hundred twenty-three thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 53891 107782 161673 215564 323346 646692 1594597 3189194 4783791 6378388 9567582 19135164 85934426927 171868853854 257803280781 343737707708 515606561562 1031213123124