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122031143030131 = 656571858615883
BaseRepresentation
bin11011101111110010010110…
…111011101000110101110011
3121000002001201011201201211221
4123233302112323220311303
5111443324240103431011
61111312155545045511
734463313325112356
oct3357622673506563
9530061634651757
10122031143030131
1135979131993525
121182a552a86897
135312644ac190a
14221c4a5aa829d
15e1949b792971
hex6efc96ee8d73

122031143030131 has 4 divisors (see below), whose sum is σ = 122033001711672. Its totient is φ = 122029284348592.

The previous prime is 122031143030129. The next prime is 122031143030161. The reversal of 122031143030131 is 131030341130221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122031143030131 - 21 = 122031143030129 is a prime.

It is a super-2 number, since 2×1220311430301312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122031143030096 and 122031143030105.

It is not an unprimeable number, because it can be changed into a prime (122031143030161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929242285 + ... + 929373598.

It is an arithmetic number, because the mean of its divisors is an integer number (30508250427918).

Almost surely, 2122031143030131 is an apocalyptic number.

122031143030131 is a deficient number, since it is larger than the sum of its proper divisors (1858681541).

122031143030131 is an equidigital number, since it uses as much as digits as its factorization.

122031143030131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858681540.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 122031143030131 its reverse (131030341130221), we get a palindrome (253061484160352).

The spelling of 122031143030131 in words is "one hundred twenty-two trillion, thirty-one billion, one hundred forty-three million, thirty thousand, one hundred thirty-one".

Divisors: 1 65657 1858615883 122031143030131