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131230422520001 = 718747203217143
BaseRepresentation
bin11101110101101001110110…
…101101111101000011000001
3122012122111122210001112121022
4131311221312231331003001
5114200034401131120001
61143034231314435225
736433041130441220
oct3565516655750301
9565574583045538
10131230422520001
11388a5567384932
1212875402b92b15
13582bc8b92c9cc
14245982ccb8cb7
15102891001e11b
hex775a76b7d0c1

131230422520001 has 4 divisors (see below), whose sum is σ = 149977625737152. Its totient is φ = 112483219302852.

The previous prime is 131230422519949. The next prime is 131230422520007. The reversal of 131230422520001 is 100025224032131.

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.

It is a cyclic number.

It is not a de Polignac number, because 131230422520001 - 214 = 131230422503617 is a prime.

It is a super-2 number, since 2×1312304225200012 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131230422520007) 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, 9373601608565 + ... + 9373601608578.

It is an arithmetic number, because the mean of its divisors is an integer number (37494406434288).

Almost surely, 2131230422520001 is an apocalyptic number.

It is an amenable number.

131230422520001 is a deficient number, since it is larger than the sum of its proper divisors (18747203217151).

131230422520001 is an equidigital number, since it uses as much as digits as its factorization.

131230422520001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18747203217150.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 131230422520001 its reverse (100025224032131), we get a palindrome (231255646552132).

The spelling of 131230422520001 in words is "one hundred thirty-one trillion, two hundred thirty billion, four hundred twenty-two million, five hundred twenty thousand, one".

Divisors: 1 7 18747203217143 131230422520001