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1311130131110 = 25177712530183
BaseRepresentation
bin10011000101000101011…
…100100001101010100110
311122100020220122200210022
4103011011130201222212
5132440143303143420
62442154100555142
7163504012142252
oct23050534415246
94570226580708
101311130131110
11466057861458
121921329b2ab2
139683cc85137
144765d851262
152418b11bc25
hex13145721aa6

1311130131110 has 16 divisors (see below), whose sum is σ = 2498859779616. Its totient is φ = 493601931648.

The previous prime is 1311130131107. The next prime is 1311130131137. The reversal of 1311130131110 is 111310311131.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3856264922 + ... + 3856265261.

It is an arithmetic number, because the mean of its divisors is an integer number (156178736226).

Almost surely, 21311130131110 is an apocalyptic number.

1311130131110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311130131110 is a deficient number, since it is larger than the sum of its proper divisors (1187729648506).

1311130131110 is a wasteful number, since it uses less digits than its factorization.

1311130131110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7712530207.

The product of its (nonzero) digits is 27, while the sum is 17.

Adding to 1311130131110 its reverse (111310311131), we get a palindrome (1422440442241).

The spelling of 1311130131110 in words is "one trillion, three hundred eleven billion, one hundred thirty million, one hundred thirty-one thousand, one hundred ten".

Divisors: 1 2 5 10 17 34 85 170 7712530183 15425060366 38562650915 77125301830 131113013111 262226026222 655565065555 1311130131110