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122020423131 = 3130769311033
BaseRepresentation
bin111000110100011111…
…0111110010111011011
3102122221210221201222210
41301220332332113123
53444344212020011
6132015545050203
711546531324565
oct1615076762733
9378853851883
10122020423131
1147826390a02
121b794486963
13b677962609
145c977da335
15329254e6a6
hex1c68fbe5db

122020423131 has 8 divisors (see below), whose sum is σ = 162695664720. Its totient is φ = 81346065152.

The previous prime is 122020423123. The next prime is 122020423141. The reversal of 122020423131 is 131324020221.

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 122020423131 - 23 = 122020423123 is a prime.

It is a super-2 number, since 2×1220204231312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122020423098 and 122020423107.

It is not an unprimeable number, because it can be changed into a prime (122020423141) 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, 236791 + ... + 547823.

It is an arithmetic number, because the mean of its divisors is an integer number (20336958090).

Almost surely, 2122020423131 is an apocalyptic number.

122020423131 is a deficient number, since it is larger than the sum of its proper divisors (40675241589).

122020423131 is a wasteful number, since it uses less digits than its factorization.

122020423131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441805.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 122020423131 its reverse (131324020221), we get a palindrome (253344443352).

The spelling of 122020423131 in words is "one hundred twenty-two billion, twenty million, four hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 3 130769 311033 392307 933099 40673474377 122020423131