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102013231030213 = 127779885067369
BaseRepresentation
bin10111001100011111001110…
…011001011101111111000101
3111101012100222110200100120211
4113030133032121131333011
5101332341044120431323
61000544121550355421
730326132651431366
oct2714371631357705
9441170873610524
10102013231030213
112a560628489878
12b536a207bbb71
1344bca638ac179
141b296769a9b6d
15bbd8e913770d
hex5cc7ce65dfc5

102013231030213 has 4 divisors (see below), whose sum is σ = 102093116098860. Its totient is φ = 101933345961568.

The previous prime is 102013231030159. The next prime is 102013231030247. The reversal of 102013231030213 is 312030132310201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 84543648236644 + 17469582793569 = 9194762^2 + 4179663^2 .

It is a cyclic number.

It is not a de Polignac number, because 102013231030213 - 217 = 102013230899141 is a prime.

It is a super-2 number, since 2×1020132310302132 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102013231037213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39942532408 + ... + 39942534961.

It is an arithmetic number, because the mean of its divisors is an integer number (25523279024715).

Almost surely, 2102013231030213 is an apocalyptic number.

It is an amenable number.

102013231030213 is a deficient number, since it is larger than the sum of its proper divisors (79885068647).

102013231030213 is an equidigital number, since it uses as much as digits as its factorization.

102013231030213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79885068646.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 102013231030213 its reverse (312030132310201), we get a palindrome (414043363340414).

The spelling of 102013231030213 in words is "one hundred two trillion, thirteen billion, two hundred thirty-one million, thirty thousand, two hundred thirteen".

Divisors: 1 1277 79885067369 102013231030213