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122131101102031 = 779359615186353
BaseRepresentation
bin11011110001001111011100…
…111001011010111111001111
3121000102121201102110220120001
4123301033130321122333033
5112001443443340231111
61111430130413305131
734503452352522460
oct3361173471327717
9530377642426501
10122131101102031
1135a075666913aa
12118459aa7951a7
13531bbb4a11018
142223269332d67
15e1bd9be991c1
hex6f13dce5afcf

122131101102031 has 16 divisors (see below), whose sum is σ = 141738935961600. Its totient is φ = 103070782159488.

The previous prime is 122131101101993. The next prime is 122131101102037. The reversal of 122131101102031 is 130201101131221.

It is a cyclic number.

It is not a de Polignac number, because 122131101102031 - 229 = 122130564231119 is a prime.

It is a super-2 number, since 2×1221311011020312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122131101102037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307394650 + ... + 307791703.

It is an arithmetic number, because the mean of its divisors is an integer number (8858683497600).

Almost surely, 2122131101102031 is an apocalyptic number.

122131101102031 is a deficient number, since it is larger than the sum of its proper divisors (19607834859569).

122131101102031 is an equidigital number, since it uses as much as digits as its factorization.

122131101102031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615186798.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 122131101102031 its reverse (130201101131221), we get a palindrome (252332202233252).

The spelling of 122131101102031 in words is "one hundred twenty-two trillion, one hundred thirty-one billion, one hundred one million, one hundred two thousand, thirty-one".

Divisors: 1 7 79 359 553 2513 28361 198527 615186353 4306304471 48599721887 220851900727 340198053209 1545963305089 17447300157433 122131101102031