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122320200131 = 439521298777
BaseRepresentation
bin111000111101011011…
…0100010000111000011
3102200201201000222201122
41301322312202013003
54001002432401011
6132105414222455
711560131355163
oct1617266420703
9380651028648
10122320200131
114796a622898
121b858954a2b
13b6c4ab2a5c
145cc55525a3
1532ada173db
hex1c7ada21c3

122320200131 has 8 divisors (see below), whose sum is σ = 125178421104. Its totient is φ = 119462595840.

The previous prime is 122320200109. The next prime is 122320200151. The reversal of 122320200131 is 131002023221.

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 122320200131 - 222 = 122316005827 is a prime.

It is a super-2 number, since 2×1223202001312 (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 (122320200151) 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 7 ways as a sum of consecutive naturals, for example, 260015 + ... + 558791.

It is an arithmetic number, because the mean of its divisors is an integer number (15647302638).

Almost surely, 2122320200131 is an apocalyptic number.

122320200131 is a deficient number, since it is larger than the sum of its proper divisors (2858220973).

122320200131 is an equidigital number, since it uses as much as digits as its factorization.

122320200131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308341.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 122320200131 its reverse (131002023221), we get a palindrome (253322223352).

The spelling of 122320200131 in words is "one hundred twenty-two billion, three hundred twenty million, two hundred thousand, one hundred thirty-one".

Divisors: 1 43 9521 298777 409403 12847411 2844655817 122320200131