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30013021313123 = 85351076889613
BaseRepresentation
bin1101101001011111100110…
…11110010101100001100011
310221021012212001121000001112
412310233303132111201203
512413213131424004443
6143455442555053535
76215240434622222
oct664576336254143
9127235761530045
1030013021313123
1196214a6103362
1234488841412ab
1313992a6063c64
1475a8d08a2cb9
15370a9303ab18
hex1b4bf3795863

30013021313123 has 8 divisors (see below), whose sum is σ = 30054094658448. Its totient is φ = 29971961758944.

The previous prime is 30013021313117. The next prime is 30013021313131. The reversal of 30013021313123 is 32131312031003.

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

It is a cyclic number.

It is not a de Polignac number, because 30013021313123 - 28 = 30013021312867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30013021316123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911465 + ... + 7801077.

It is an arithmetic number, because the mean of its divisors is an integer number (3756761832306).

Almost surely, 230013021313123 is an apocalyptic number.

30013021313123 is a deficient number, since it is larger than the sum of its proper divisors (41073345325).

30013021313123 is an equidigital number, since it uses as much as digits as its factorization.

30013021313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6895573.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 30013021313123 its reverse (32131312031003), we get a palindrome (62144333344126).

The spelling of 30013021313123 in words is "thirty trillion, thirteen billion, twenty-one million, three hundred thirteen thousand, one hundred twenty-three".

Divisors: 1 853 5107 4356271 6889613 5876839889 35185253591 30013021313123