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23213301331 = 1143161930313
BaseRepresentation
bin10101100111100111…
…101101111001010011
32012220202220220000011
4111213213231321103
5340020101120311
614355233335351
71451150543233
oct254747557123
965822826004
1023213301331
119932337960
1245ba107557
13225c32287c
1411a2d73cc3
1590cde5321
hex5679ede53

23213301331 has 16 divisors (see below), whose sum is σ = 25929383040. Its totient is φ = 20598822720.

The previous prime is 23213301299. The next prime is 23213301341. The reversal of 23213301331 is 13310331232.

It is a cyclic number.

It is not a de Polignac number, because 23213301331 - 25 = 23213301299 is a prime.

It is a super-2 number, since 2×232133013312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23213301341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 750631 + ... + 780943.

It is an arithmetic number, because the mean of its divisors is an integer number (1620586440).

Almost surely, 223213301331 is an apocalyptic number.

23213301331 is a deficient number, since it is larger than the sum of its proper divisors (2716081709).

23213301331 is a wasteful number, since it uses less digits than its factorization.

23213301331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31986.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23213301331 its reverse (13310331232), we get a palindrome (36523632563).

The spelling of 23213301331 in words is "twenty-three billion, two hundred thirteen million, three hundred one thousand, three hundred thirty-one".

Divisors: 1 11 43 473 1619 17809 30313 69617 333443 765787 1303459 14338049 49076747 539844217 2110300121 23213301331