131343042101 has 2 divisors, whose sum is σ = 131343042102. Its totient is φ = 131343042100.

The previous prime is 131343042097. The next prime is 131343042217. The reversal of 131343042101 is 101240343131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80718492100 + 50624550001 = 284110^2 + 224999^2 .

It is a cyclic number.

It is not a de Polignac number, because 131343042101 - 2² = 131343042097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131343042401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65671521050 + 65671521051.

It is an arithmetic number, because the mean of its divisors is an integer number (65671521051).

Almost surely, 2^131343042101 is an apocalyptic number.

It is an amenable number.

131343042101 is a deficient number, since it is larger than the sum of its proper divisors (1).

131343042101 is an equidigital number, since it uses as much as digits as its factorization.

131343042101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 131343042101 its reverse (101240343131), we get a palindrome (232583385232).

It can be divided in two parts, 1313430 and 42101, that added together give a palindrome (1355531).

The spelling of 131343042101 in words is "one hundred thirty-one billion, three hundred forty-three million, forty-two thousand, one hundred one".