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103230012031 = 119386529767
BaseRepresentation
bin110000000100011111…
…1001111101001111111
3100212110021110221202221
41200020333033221333
53142403340341111
6115231225230211
710313064424126
oct1401077175177
9325407427687
10103230012031
113a863717a33
121800b632367
139971a58873
144dd401cabd
152a42ab5371
hex1808fcfa7f

103230012031 has 4 divisors (see below), whose sum is σ = 103316542992. Its totient is φ = 103143481072.

The previous prime is 103230011987. The next prime is 103230012049. The reversal of 103230012031 is 130210032301.

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 103230012031 - 27 = 103230011903 is a prime.

It is a super-2 number, since 2×1032300120312 (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 = 103230011996 and 103230012014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103230013031) 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, 43263691 + ... + 43266076.

It is an arithmetic number, because the mean of its divisors is an integer number (25829135748).

Almost surely, 2103230012031 is an apocalyptic number.

103230012031 is a deficient number, since it is larger than the sum of its proper divisors (86530961).

103230012031 is an equidigital number, since it uses as much as digits as its factorization.

103230012031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86530960.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 103230012031 its reverse (130210032301), we get a palindrome (233440044332).

The spelling of 103230012031 in words is "one hundred three billion, two hundred thirty million, twelve thousand, thirty-one".

Divisors: 1 1193 86529767 103230012031