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131103140511 = 3712749157533
BaseRepresentation
bin111101000011001011…
…0110010101010011111
3110112101210200120220210
41322012112302222133
54121444400444021
6140121123143503
712320600210310
oct1720626625237
9415353616823
10131103140511
1150667339a02
12214aa214b93
13c4945b4ab5
1464b9bc4607
153624b19e76
hex1e865b2a9f

131103140511 has 16 divisors (see below), whose sum is σ = 201349259264. Its totient is φ = 74326188384.

The previous prime is 131103140503. The next prime is 131103140527. The reversal of 131103140511 is 115041301131.

It is not a de Polignac number, because 131103140511 - 23 = 131103140503 is a prime.

It is a super-2 number, since 2×1311031405112 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131103140561) 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, 24576100 + ... + 24581433.

It is an arithmetic number, because the mean of its divisors is an integer number (12584328704).

Almost surely, 2131103140511 is an apocalyptic number.

131103140511 is a deficient number, since it is larger than the sum of its proper divisors (70246118753).

131103140511 is a wasteful number, since it uses less digits than its factorization.

131103140511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49157670.

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 131103140511 its reverse (115041301131), we get a palindrome (246144441642).

The spelling of 131103140511 in words is "one hundred thirty-one billion, one hundred three million, one hundred forty thousand, five hundred eleven".

Divisors: 1 3 7 21 127 381 889 2667 49157533 147472599 344102731 1032308193 6243006691 18729020073 43701046837 131103140511