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131135245311 = 3710459597049
BaseRepresentation
bin111101000100001000…
…1010000101111111111
3110112111001002200102110
41322020101100233333
54122031110322221
6140124231225103
712321440123310
oct1721021205777
9415431080373
10131135245311
11506834777a4
12214b8b18193
13c49b145b15
1464c0180607
15362785c776
hex1e88450bff

131135245311 has 16 divisors (see below), whose sum is σ = 199844576000. Its totient is φ = 74927135808.

The previous prime is 131135245301. The next prime is 131135245331. The reversal of 131135245311 is 113542531131.

It is not a de Polignac number, because 131135245311 - 213 = 131135237119 is a prime.

It is a super-2 number, since 2×1311352453112 (a number of 23 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 (131135245301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78886 + ... + 518163.

It is an arithmetic number, because the mean of its divisors is an integer number (12490286000).

Almost surely, 2131135245311 is an apocalyptic number.

131135245311 is a deficient number, since it is larger than the sum of its proper divisors (68709330689).

131135245311 is a wasteful number, since it uses less digits than its factorization.

131135245311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607518.

The product of its digits is 5400, while the sum is 30.

Adding to 131135245311 its reverse (113542531131), we get a palindrome (244677776442).

The spelling of 131135245311 in words is "one hundred thirty-one billion, one hundred thirty-five million, two hundred forty-five thousand, three hundred eleven".

Divisors: 1 3 7 21 10459 31377 73213 219639 597049 1791147 4179343 12538029 6244535491 18733606473 43711748437 131135245311