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23201033213213 = 78641929502127
BaseRepresentation
bin1010100011001111010010…
…10101111101010100011101
310001010222220220012010200022
411101213221111331110131
511020111204000310323
6121202224005041525
74613135142264302
oct521475125752435
9101128826163608
1023201033213213
117435559443329
1227286230b62a5
13cc3b041cb66b
145a2d1654b0a9
152a37a35e14c8
hex1519e957d51d

23201033213213 has 4 divisors (see below), whose sum is σ = 23201063501760. Its totient is φ = 23201002924668.

The previous prime is 23201033213207. The next prime is 23201033213257. The reversal of 23201033213213 is 31231233010232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23201033213213 - 212 = 23201033209117 is a prime.

It is a super-2 number, since 2×232010332132132 (a number of 28 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 (23201033213273) 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, 13964645 + ... + 15537482.

It is an arithmetic number, because the mean of its divisors is an integer number (5800265875440).

Almost surely, 223201033213213 is an apocalyptic number.

It is an amenable number.

23201033213213 is a deficient number, since it is larger than the sum of its proper divisors (30288547).

23201033213213 is an equidigital number, since it uses as much as digits as its factorization.

23201033213213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30288546.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 23201033213213 its reverse (31231233010232), we get a palindrome (54432266223445).

The spelling of 23201033213213 in words is "twenty-three trillion, two hundred one billion, thirty-three million, two hundred thirteen thousand, two hundred thirteen".

Divisors: 1 786419 29502127 23201033213213