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31030213132123 = 1910715263262731
BaseRepresentation
bin1110000111000110010001…
…10101001011111101011011
311001212110101220110022122121
413003203020311023331123
513031344334030211443
6145555025542002111
76351600415464442
oct703431065137533
9131773356408577
1031030213132123
1199839263a2327
123591a43716337
1314411a0ca455a
14793c2827bd59
1538c278c194ed
hex1c38c8d4bf5b

31030213132123 has 8 divisors (see below), whose sum is σ = 32968647501120. Its totient is φ = 29122305288840.

The previous prime is 31030213132097. The next prime is 31030213132133. The reversal of 31030213132123 is 32123131203013.

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

It is a cyclic number.

It is not a de Polignac number, because 31030213132123 - 241 = 28831189876571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31030213132133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7631629333 + ... + 7631633398.

It is an arithmetic number, because the mean of its divisors is an integer number (4121080937640).

Almost surely, 231030213132123 is an apocalyptic number.

31030213132123 is a deficient number, since it is larger than the sum of its proper divisors (1938434368997).

31030213132123 is a wasteful number, since it uses less digits than its factorization.

31030213132123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15263262857.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31030213132123 its reverse (32123131203013), we get a palindrome (63153344335136).

The spelling of 31030213132123 in words is "thirty-one trillion, thirty billion, two hundred thirteen million, one hundred thirty-two thousand, one hundred twenty-three".

Divisors: 1 19 107 2033 15263262731 290001991889 1633169112217 31030213132123