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131212201001 = 769127126773
BaseRepresentation
bin111101000110011011…
…0110100110000101001
3110112200101220102210012
41322030312310300221
54122210310413001
6140140020501305
712323363210030
oct1721466646051
9415611812705
10131212201001
1150712959742
122151a84a835
13c4b107b62b
1464ca493717
15362e4ae2bb
hex1e8cdb4c29

131212201001 has 8 divisors (see below), whose sum is σ = 150173820864. Its totient is φ = 112304836080.

The previous prime is 131212200997. The next prime is 131212201019. The reversal of 131212201001 is 100102212131.

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

It is a cyclic number.

It is not a de Polignac number, because 131212201001 - 22 = 131212200997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131212207001) 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, 13558550 + ... + 13568223.

It is an arithmetic number, because the mean of its divisors is an integer number (18771727608).

Almost surely, 2131212201001 is an apocalyptic number.

It is an amenable number.

131212201001 is a deficient number, since it is larger than the sum of its proper divisors (18961619863).

131212201001 is an equidigital number, since it uses as much as digits as its factorization.

131212201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27127471.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 131212201001 its reverse (100102212131), we get a palindrome (231314413132).

It can be divided in two parts, 13121 and 2201001, that added together give a palindrome (2214122).

The spelling of 131212201001 in words is "one hundred thirty-one billion, two hundred twelve million, two hundred one thousand, one".

Divisors: 1 7 691 4837 27126773 189887411 18744600143 131212201001