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31033301112121 = 7111723707640269
BaseRepresentation
bin1110000111001100000001…
…11000111001010100111001
311001212202101010000221212011
413003212000320321110321
513031422200041041441
6150000300212045521
76352040063050540
oct703460070712471
9131782333027764
1031033301112121
119985170494410
1235925659038a1
131441573981459
1479403c427157
1538c3a9d8b581
hex1c3980e39539

31033301112121 has 16 divisors (see below), whose sum is σ = 40966802386560. Its totient is φ = 22759334657280.

The previous prime is 31033301112119. The next prime is 31033301112133. The reversal of 31033301112121 is 12121110333013.

It is a cyclic number.

It is not a de Polignac number, because 31033301112121 - 21 = 31033301112119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31033301112092 and 31033301112101.

It is not an unprimeable number, because it can be changed into a prime (31033301112721) 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, 11853818826 + ... + 11853821443.

It is an arithmetic number, because the mean of its divisors is an integer number (2560425149160).

Almost surely, 231033301112121 is an apocalyptic number.

It is an amenable number.

31033301112121 is a deficient number, since it is larger than the sum of its proper divisors (9933501274439).

31033301112121 is a wasteful number, since it uses less digits than its factorization.

31033301112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23707640304.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 31033301112121 its reverse (12121110333013), we get a palindrome (43154411445134).

The spelling of 31033301112121 in words is "thirty-one trillion, thirty-three billion, three hundred one million, one hundred twelve thousand, one hundred twenty-one".

Divisors: 1 7 11 17 77 119 187 1309 23707640269 165953481883 260784042959 403029884573 1825488300713 2821209192011 4433328730303 31033301112121