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31023132012223 = 1349115593117559
BaseRepresentation
bin1110000110111001000101…
…10000110110111010111111
311001211210010102002011021121
413003130202300312322333
513031240333243342343
6145551455145011411
76351230063116141
oct703344260667277
9131753112064247
1031023132012223
11998092228211a
1235905a8183b67
131440612c38590
14793755a46c91
1538beb2229aed
hex1c3722c36ebf

31023132012223 has 16 divisors (see below), whose sum is σ = 33499055116800. Its totient is φ = 28560073540320.

The previous prime is 31023132012221. The next prime is 31023132012253. The reversal of 31023132012223 is 32221023132013.

It is a cyclic number.

It is not a de Polignac number, because 31023132012223 - 21 = 31023132012221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023132012221) 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, 8392318 + ... + 11509876.

It is an arithmetic number, because the mean of its divisors is an integer number (2093690944800).

Almost surely, 231023132012223 is an apocalyptic number.

31023132012223 is a deficient number, since it is larger than the sum of its proper divisors (2475923104577).

31023132012223 is a wasteful number, since it uses less digits than its factorization.

31023132012223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119622.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31023132012223 its reverse (32221023132013), we get a palindrome (63244155144236).

The spelling of 31023132012223 in words is "thirty-one trillion, twenty-three billion, one hundred thirty-two million, twelve thousand, two hundred twenty-three".

Divisors: 1 13 491 1559 6383 20267 765469 3117559 9951097 40528267 1530721469 4860274481 19899379097 63183568253 2386394770171 31023132012223