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103442103031 = 684471511273
BaseRepresentation
bin110000001010110100…
…0010011101011110111
3100220000001120021221011
41200111220103223313
53143322134244111
6115304243133051
710321251240211
oct1402550235367
9326001507834
10103442103031
113a962409053
121806a674187
1399a69873b7
14501426b5b1
152a5650c021
hex1815a13af7

103442103031 has 4 divisors (see below), whose sum is σ = 103443682752. Its totient is φ = 103440523312.

The previous prime is 103442103019. The next prime is 103442103053. The reversal of 103442103031 is 130301244301.

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

It is a cyclic number.

It is not a de Polignac number, because 103442103031 - 25 = 103442102999 is a prime.

It is a super-2 number, since 2×1034421030312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103442102993 and 103442103011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103442703031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687190 + ... + 824083.

It is an arithmetic number, because the mean of its divisors is an integer number (25860920688).

Almost surely, 2103442103031 is an apocalyptic number.

103442103031 is a deficient number, since it is larger than the sum of its proper divisors (1579721).

103442103031 is an equidigital number, since it uses as much as digits as its factorization.

103442103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579720.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 103442103031 its reverse (130301244301), we get a palindrome (233743347332).

The spelling of 103442103031 in words is "one hundred three billion, four hundred forty-two million, one hundred three thousand, thirty-one".

Divisors: 1 68447 1511273 103442103031