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131011203101 = 1961113038139
BaseRepresentation
bin111101000000011100…
…0000101000000011101
3110112011101200200111112
41322000320011000131
54121302331444401
6140104040431405
712315402565232
oct1720070050035
9415141620445
10131011203101
115061a454a79
1221483478565
13c47b53506c
1464ab8d1789
15361ba093bb
hex1e80e0501d

131011203101 has 8 divisors (see below), whose sum is σ = 140167293600. Its totient is φ = 122081189040.

The previous prime is 131011203053. The next prime is 131011203119. The reversal of 131011203101 is 101302110131.

It is a happy number.

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-131011203101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131011209101) 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, 56517911 + ... + 56520228.

It is an arithmetic number, because the mean of its divisors is an integer number (17520911700).

Almost surely, 2131011203101 is an apocalyptic number.

It is an amenable number.

131011203101 is a deficient number, since it is larger than the sum of its proper divisors (9156090499).

131011203101 is a wasteful number, since it uses less digits than its factorization.

131011203101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113038219.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 131011203101 its reverse (101302110131), we get a palindrome (232313313232).

The spelling of 131011203101 in words is "one hundred thirty-one billion, eleven million, two hundred three thousand, one hundred one".

Divisors: 1 19 61 1159 113038139 2147724641 6895326479 131011203101