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131103044031 = 3156727888331
BaseRepresentation
bin111101000011001011…
…0011011000110111111
3110112101210111200120110
41322012112123012333
54121444334402111
6140121121121103
712320566326111
oct1720626330677
9415353450513
10131103044031
1150667283473
12214aa189193
13c49457cbcb
1464b9b9b3b1
153624aeb5a6
hex1e8659b1bf

131103044031 has 8 divisors (see below), whose sum is σ = 174915618304. Its totient is φ = 87346249560.

The previous prime is 131103044029. The next prime is 131103044071. The reversal of 131103044031 is 130440301131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131103044031 - 21 = 131103044029 is a prime.

It is a super-2 number, since 2×1311030440312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131103043989 and 131103044007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131103044071) 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, 13939465 + ... + 13948866.

It is an arithmetic number, because the mean of its divisors is an integer number (21864452288).

Almost surely, 2131103044031 is an apocalyptic number.

131103044031 is a deficient number, since it is larger than the sum of its proper divisors (43812574273).

131103044031 is a wasteful number, since it uses less digits than its factorization.

131103044031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27889901.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131103044031 its reverse (130440301131), we get a palindrome (261543345162).

The spelling of 131103044031 in words is "one hundred thirty-one billion, one hundred three million, forty-four thousand, thirty-one".

Divisors: 1 3 1567 4701 27888331 83664993 43701014677 131103044031