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131222313040031 = 3115726961642293
BaseRepresentation
bin11101110101100010010011…
…010110101111100010011111
3122012121201201121122021102022
4131311202103112233202133
5114144421244114240111
61143030410504250355
736432333150133403
oct3565422326574237
9565551647567368
10131222313040031
11388a2085830574
121287391b1709bb
13582b298807155
14245929dc73103
1510285d80ea2db
hex7758935af89f

131222313040031 has 8 divisors (see below), whose sum is σ = 136318063438464. Its totient is φ = 126180485926560.

The previous prime is 131222313040009. The next prime is 131222313040067. The reversal of 131222313040031 is 130040313222131.

It is a happy number.

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 131222313040031 - 230 = 131221239298207 is a prime.

It is a super-2 number, since 2×1312223130400312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131222313040331) 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, 13480816280 + ... + 13480826013.

It is an arithmetic number, because the mean of its divisors is an integer number (17039757929808).

Almost surely, 2131222313040031 is an apocalyptic number.

131222313040031 is a deficient number, since it is larger than the sum of its proper divisors (5095750398433).

131222313040031 is a wasteful number, since it uses less digits than its factorization.

131222313040031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26961642481.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 131222313040031 its reverse (130040313222131), we get a palindrome (261262626262162).

The spelling of 131222313040031 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, three hundred thirteen million, forty thousand, thirty-one".

Divisors: 1 31 157 4867 26961642293 835810911083 4232977840001 131222313040031