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31201301113 = 891103317839
BaseRepresentation
bin11101000011101111…
…100001001001111001
32222112110202022200221
4131003233201021321
51002400013113423
622200024100041
72153124453313
oct350357411171
988473668627
1031201301113
1112261359374
126069304621
132c33223868
14171dbd67b3
15c2931ee5d
hex743be1279

31201301113 has 8 divisors (see below), whose sum is σ = 31580582400. Its totient is φ = 30822657888.

The previous prime is 31201301093. The next prime is 31201301143. The reversal of 31201301113 is 31110310213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31201301113 is a prime.

It is a super-2 number, since 2×312013011132 (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 (31201301143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60753 + ... + 257086.

It is an arithmetic number, because the mean of its divisors is an integer number (3947572800).

Almost surely, 231201301113 is an apocalyptic number.

It is an amenable number.

31201301113 is a deficient number, since it is larger than the sum of its proper divisors (379281287).

31201301113 is a wasteful number, since it uses less digits than its factorization.

31201301113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319031.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 31201301113 its reverse (31110310213), we get a palindrome (62311611326).

The spelling of 31201301113 in words is "thirty-one billion, two hundred one million, three hundred one thousand, one hundred thirteen".

Divisors: 1 89 1103 98167 317839 28287671 350576417 31201301113