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235031112121 = 131571117103093
BaseRepresentation
bin1101101011100011110…
…0100010100110111001
3211110122201111120020111
43122320330202212321
512322320431041441
6255545524224321
722660201330141
oct3327074424671
9743581446214
10235031112121
1190748a32233
123967353b0a1
1319217b170a0
14b5387a9921
1561a8aed081
hex36b8f229b9

235031112121 has 16 divisors (see below), whose sum is σ = 254953111504. Its totient is φ = 215374857984.

The previous prime is 235031112101. The next prime is 235031112259. The reversal of 235031112121 is 121211130532.

It can be written as a sum of positive squares in 8 ways, for example, as 71824000000 + 163207112121 = 268000^2 + 403989^2 .

It is not a de Polignac number, because 235031112121 - 213 = 235031103929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 235031112092 and 235031112101.

It is not an unprimeable number, because it can be changed into a prime (235031112101) 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, 2228251 + ... + 2331343.

It is an arithmetic number, because the mean of its divisors is an integer number (15934569469).

Almost surely, 2235031112121 is an apocalyptic number.

It is an amenable number.

235031112121 is a deficient number, since it is larger than the sum of its proper divisors (19921999383).

235031112121 is a wasteful number, since it uses less digits than its factorization.

235031112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104380.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 235031112121 its reverse (121211130532), we get a palindrome (356242242653).

The spelling of 235031112121 in words is "two hundred thirty-five billion, thirty-one million, one hundred twelve thousand, one hundred twenty-one".

Divisors: 1 13 157 1117 2041 14521 103093 175369 1340209 2279797 16185601 115154881 210412813 1497013453 18079316317 235031112121