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122131132223 = 412978808103
BaseRepresentation
bin111000110111110010…
…1010010111100111111
3102200020112021100022112
41301233211102330333
54000111032212343
6132034542004235
711552344331612
oct1615745227477
9380215240275
10122131132223
1147882927321
121b80557667b
13b694885659
145ca83b8179
15329c11c218
hex1c6f952f3f

122131132223 has 4 divisors (see below), whose sum is σ = 125109940368. Its totient is φ = 119152324080.

The previous prime is 122131132219. The next prime is 122131132241. The reversal of 122131132223 is 322231131221.

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 122131132223 - 22 = 122131132219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122131132423) 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, 1489404011 + ... + 1489404092.

It is an arithmetic number, because the mean of its divisors is an integer number (31277485092).

Almost surely, 2122131132223 is an apocalyptic number.

122131132223 is a deficient number, since it is larger than the sum of its proper divisors (2978808145).

122131132223 is an equidigital number, since it uses as much as digits as its factorization.

122131132223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978808144.

The product of its digits is 864, while the sum is 23.

Adding to 122131132223 its reverse (322231131221), we get a palindrome (444362263444).

The spelling of 122131132223 in words is "one hundred twenty-two billion, one hundred thirty-one million, one hundred thirty-two thousand, two hundred twenty-three".

Divisors: 1 41 2978808103 122131132223