131553430213 has 2 divisors, whose sum is σ = 131553430214. Its totient is φ = 131553430212.

The previous prime is 131553430199. The next prime is 131553430223. The reversal of 131553430213 is 312034355131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129627361444 + 1926068769 = 360038^2 + 43887^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131553430213 is a prime.

It is a super-2 number, since 2×131553430213² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131553430223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65776715106 + 65776715107.

It is an arithmetic number, because the mean of its divisors is an integer number (65776715107).

Almost surely, 2^131553430213 is an apocalyptic number.

It is an amenable number.

131553430213 is a deficient number, since it is larger than the sum of its proper divisors (1).

131553430213 is an equidigital number, since it uses as much as digits as its factorization.

131553430213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 131553430213 its reverse (312034355131), we get a palindrome (443587785344).

The spelling of 131553430213 in words is "one hundred thirty-one billion, five hundred fifty-three million, four hundred thirty thousand, two hundred thirteen".