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23100133331 = 112100012121
BaseRepresentation
bin10101100000111000…
…000000111111010011
32012121212222100200202
4111200320000333103
5334302113231311
614340112005415
71445304615332
oct254070007723
965555870622
1023100133331
119884472090
12458823086b
132241a4b562
141191d15d19
15902edde3b
hex560e00fd3

23100133331 has 4 divisors (see below), whose sum is σ = 25200145464. Its totient is φ = 21000121200.

The previous prime is 23100133319. The next prime is 23100133351. The reversal of 23100133331 is 13333100132.

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 23100133331 - 214 = 23100116947 is a prime.

It is a super-2 number, since 2×231001333312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23100133351) 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, 1050006050 + ... + 1050006071.

It is an arithmetic number, because the mean of its divisors is an integer number (6300036366).

Almost surely, 223100133331 is an apocalyptic number.

23100133331 is a deficient number, since it is larger than the sum of its proper divisors (2100012133).

23100133331 is a wasteful number, since it uses less digits than its factorization.

23100133331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100012132.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 23100133331 its reverse (13333100132), we get a palindrome (36433233463).

The spelling of 23100133331 in words is "twenty-three billion, one hundred million, one hundred thirty-three thousand, three hundred thirty-one".

Divisors: 1 11 2100012121 23100133331