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131302110021 = 373727593641
BaseRepresentation
bin111101001001000110…
…1110011001101000101
3110112220200002021202220
41322102031303031011
54122401320010041
6140152551522553
712325534343325
oct1722215631505
9415820067686
10131302110021
1150759688715
1221544989459
13c4c689b034
1464d83b9285
15363731dd66
hex1e92373345

131302110021 has 8 divisors (see below), whose sum is σ = 175072149504. Its totient is φ = 87533405280.

The previous prime is 131302109987. The next prime is 131302110031. The reversal of 131302110021 is 120011203131.

It is a happy number.

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

It is not a de Polignac number, because 131302110021 - 26 = 131302109957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131302110031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75640 + ... + 518001.

It is an arithmetic number, because the mean of its divisors is an integer number (21884018688).

Almost surely, 2131302110021 is an apocalyptic number.

It is an amenable number.

131302110021 is a deficient number, since it is larger than the sum of its proper divisors (43770039483).

131302110021 is an equidigital number, since it uses as much as digits as its factorization.

131302110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667371.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 131302110021 its reverse (120011203131), we get a palindrome (251313313152).

The spelling of 131302110021 in words is "one hundred thirty-one billion, three hundred two million, one hundred ten thousand, twenty-one".

Divisors: 1 3 73727 221181 593641 1780923 43767370007 131302110021