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31301031210113 = 729313492627067
BaseRepresentation
bin1110001110111110101101…
…10110001010110010000001
311002211100102200110010001102
413013133112312022302001
513100314002442210423
6150323254545144145
76410265506250230
oct707372666126201
9132740380403042
1031301031210113
119a78769113705
12361642402b055
1314608a0080592
147a2d99888b17
153943294e7c28
hex1c77d6d8ac81

31301031210113 has 16 divisors (see below), whose sum is σ = 37124375844480. Its totient is φ = 25821540291456.

The previous prime is 31301031210101. The next prime is 31301031210151. The reversal of 31301031210113 is 31101213010313.

It is not a de Polignac number, because 31301031210113 - 28 = 31301031209857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31301031210013) 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, 246249995 + ... + 246377072.

It is an arithmetic number, because the mean of its divisors is an integer number (2320273490280).

Almost surely, 231301031210113 is an apocalyptic number.

It is an amenable number.

31301031210113 is a deficient number, since it is larger than the sum of its proper divisors (5823344634367).

31301031210113 is a wasteful number, since it uses less digits than its factorization.

31301031210113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492627416.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 31301031210113 its reverse (31101213010313), we get a palindrome (62402244220426).

The spelling of 31301031210113 in words is "thirty-one trillion, three hundred one billion, thirty-one million, two hundred ten thousand, one hundred thirteen".

Divisors: 1 7 29 203 313 2191 9077 63539 492627067 3448389469 14286184943 100003294601 154192271971 1079345903797 4471575887159 31301031210113