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122031001131231 = 378857515832461
BaseRepresentation
bin11011101111110010001110…
…011110010101100011011111
3121000002001100021201112011010
4123233302032132111203133
5111443323442242144411
61111312133515430303
734463306653023063
oct3357621636254337
9530061307645133
10122031001131231
1135979069884805
121182a513455393
13531262159b17a
14221c490ccbaa3
15e1948e0b37a6
hex6efc8e7958df

122031001131231 has 8 divisors (see below), whose sum is σ = 162710065153584. Its totient is φ = 81352968931520.

The previous prime is 122031001131203. The next prime is 122031001131241. The reversal of 122031001131231 is 132131100130221.

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 122031001131231 - 25 = 122031001131199 is a prime.

It is a super-2 number, since 2×1220310011312312 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122031001131198 and 122031001131207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122031001131241) 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, 257679660 + ... + 258152801.

It is an arithmetic number, because the mean of its divisors is an integer number (20338758144198).

Almost surely, 2122031001131231 is an apocalyptic number.

122031001131231 is a deficient number, since it is larger than the sum of its proper divisors (40679064022353).

122031001131231 is an equidigital number, since it uses as much as digits as its factorization.

122031001131231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515911321.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 122031001131231 its reverse (132131100130221), we get a palindrome (254162101261452).

The spelling of 122031001131231 in words is "one hundred twenty-two trillion, thirty-one billion, one million, one hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 3 78857 236571 515832461 1547497383 40677000377077 122031001131231