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122002113131 = 196421163849
BaseRepresentation
bin111000110011111100…
…1001000001001101011
3102122220112111111101122
41301213321020021223
53444330020110011
6132014052405455
711546216564633
oct1614771101153
9378815444348
10122002113131
1147817015378
121b78a31688b
13b673c214b2
145c951d16c3
153290b343db
hex1c67e4826b

122002113131 has 4 divisors (see below), whose sum is σ = 128423277000. Its totient is φ = 115580949264.

The previous prime is 122002113119. The next prime is 122002113173. The reversal of 122002113131 is 131311200221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131311200221 = 1153113886557.

It is not a de Polignac number, because 122002113131 - 26 = 122002113067 is a prime.

It is a super-2 number, since 2×1220021131312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122002113931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3210581906 + ... + 3210581943.

It is an arithmetic number, because the mean of its divisors is an integer number (32105819250).

Almost surely, 2122002113131 is an apocalyptic number.

122002113131 is a deficient number, since it is larger than the sum of its proper divisors (6421163869).

122002113131 is an equidigital number, since it uses as much as digits as its factorization.

122002113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421163868.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 122002113131 its reverse (131311200221), we get a palindrome (253313313352).

The spelling of 122002113131 in words is "one hundred twenty-two billion, two million, one hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 19 6421163849 122002113131