131212242101401 has 2 divisors, whose sum is σ = 131212242101402. Its totient is φ = 131212242101400.

The previous prime is 131212242101371. The next prime is 131212242101483. The reversal of 131212242101401 is 104101242212131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74065370303376 + 57146871798025 = 8606124^2 + 7559555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131212242101401 is a prime.

It is a super-2 number, since 2×131212242101401² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131212242101491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65606121050700 + 65606121050701.

It is an arithmetic number, because the mean of its divisors is an integer number (65606121050701).

Almost surely, 2^{131212242101401} is an apocalyptic number.

It is an amenable number.

131212242101401 is a deficient number, since it is larger than the sum of its proper divisors (1).

131212242101401 is an equidigital number, since it uses as much as digits as its factorization.

131212242101401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 131212242101401 its reverse (104101242212131), we get a palindrome (235313484313532).

The spelling of 131212242101401 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred forty-two million, one hundred one thousand, four hundred one".