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131323023301 = 151318679071
BaseRepresentation
bin111101001001101110…
…1100100111111000101
3110112222010102210101211
41322103131210333011
54122422143221201
6140155020051421
712326210165101
oct1722335447705
9415863383354
10131323023301
115076a472118
122154b993b71
13c4cb011062
1464db0a0901
1536390a0651
hex1e93764fc5

131323023301 has 4 divisors (see below), whose sum is σ = 131331717504. Its totient is φ = 131314329100.

The previous prime is 131323023287. The next prime is 131323023317. The reversal of 131323023301 is 103320323131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 103320323131 = 696231483997.

It is a cyclic number.

It is not a de Polignac number, because 131323023301 - 219 = 131322499013 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 (131323023331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4324405 + ... + 4354666.

It is an arithmetic number, because the mean of its divisors is an integer number (32832929376).

Almost surely, 2131323023301 is an apocalyptic number.

It is an amenable number.

131323023301 is a deficient number, since it is larger than the sum of its proper divisors (8694203).

131323023301 is an equidigital number, since it uses as much as digits as its factorization.

131323023301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8694202.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 131323023301 its reverse (103320323131), we get a palindrome (234643346432).

The spelling of 131323023301 in words is "one hundred thirty-one billion, three hundred twenty-three million, twenty-three thousand, three hundred one".

Divisors: 1 15131 8679071 131323023301