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131003311121 = 1036481196247
BaseRepresentation
bin111101000000001100…
…1111110010000010001
3110112010211211201201222
41322000121332100101
54121243321423441
6140103155334425
712315245525444
oct1720031762021
9415124751658
10131003311121
1150615a54681
12214808b1415
13c479a00b57
1464aa83965b
15361ae9ad4b
hex1e8067e411

131003311121 has 8 divisors (see below), whose sum is σ = 132296271744. Its totient is φ = 129710756160.

The previous prime is 131003311099. The next prime is 131003311139. The reversal of 131003311121 is 121113300131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131003311121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131003311121.

It is not an unprimeable number, because it can be changed into a prime (131003311141) 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, 569420 + ... + 765666.

It is an arithmetic number, because the mean of its divisors is an integer number (16537033968).

Almost surely, 2131003311121 is an apocalyptic number.

It is an amenable number.

131003311121 is a deficient number, since it is larger than the sum of its proper divisors (1292960623).

131003311121 is a wasteful number, since it uses less digits than its factorization.

131003311121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202831.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 131003311121 its reverse (121113300131), we get a palindrome (252116611252).

The spelling of 131003311121 in words is "one hundred thirty-one billion, three million, three hundred eleven thousand, one hundred twenty-one".

Divisors: 1 103 6481 196247 667543 20213441 1271876807 131003311121