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123103012030 = 2512310301203
BaseRepresentation
bin111001010100110000…
…0101110010010111110
3102202202021000221202221
41302221200232102332
54004103332341110
6132315220435554
711615415223465
oct1625140562276
9382667027687
10123103012030
1148231493a79
121ba36b48bba
13b7bb02836b
145d5b4c59dc
1533075e67da
hex1ca982e4be

123103012030 has 8 divisors (see below), whose sum is σ = 221585421672. Its totient is φ = 49241204808.

The previous prime is 123103012027. The next prime is 123103012037. The reversal of 123103012030 is 30210301321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 123103011995 and 123103012013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123103012037) 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, 6155150592 + ... + 6155150611.

It is an arithmetic number, because the mean of its divisors is an integer number (27698177709).

Almost surely, 2123103012030 is an apocalyptic number.

123103012030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123103012030 is a deficient number, since it is larger than the sum of its proper divisors (98482409642).

123103012030 is a wasteful number, since it uses less digits than its factorization.

123103012030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12310301210.

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

Adding to 123103012030 its reverse (30210301321), we get a palindrome (153313313351).

The spelling of 123103012030 in words is "one hundred twenty-three billion, one hundred three million, twelve thousand, thirty".

Divisors: 1 2 5 10 12310301203 24620602406 61551506015 123103012030