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1030012103123 = 7969912923777
BaseRepresentation
bin11101111110100011000…
…00010110100111010011
310122110122022111020012222
432333101200112213103
5113333431044244443
62105103034011255
7134262442263653
oct16772140264723
93573568436188
101030012103123
11367909a86203
12147758b76b2b
137618c00a843
1437bd2322363
151bbd6481468
hexefd18169d3

1030012103123 has 4 divisors (see below), whose sum is σ = 1030025106600. Its totient is φ = 1029999099648.

The previous prime is 1030012103117. The next prime is 1030012103149. The reversal of 1030012103123 is 3213012100301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1030012103123 is a prime.

It is a super-4 number, since 4×10300121031234 (a number of 49 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030012103723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6382190 + ... + 6541587.

It is an arithmetic number, because the mean of its divisors is an integer number (257506276650).

Almost surely, 21030012103123 is an apocalyptic number.

1030012103123 is a deficient number, since it is larger than the sum of its proper divisors (13003477).

1030012103123 is an equidigital number, since it uses as much as digits as its factorization.

1030012103123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13003476.

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

Adding to 1030012103123 its reverse (3213012100301), we get a palindrome (4243024203424).

The spelling of 1030012103123 in words is "one trillion, thirty billion, twelve million, one hundred three thousand, one hundred twenty-three".

Divisors: 1 79699 12923777 1030012103123