31542141229 has 2 divisors, whose sum is σ = 31542141230. Its totient is φ = 31542141228.

The previous prime is 31542141221. The next prime is 31542141307. The reversal of 31542141229 is 92214124513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23338672900 + 8203468329 = 152770^2 + 90573^2 .

It is a cyclic number.

It is not a de Polignac number, because 31542141229 - 2³ = 31542141221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31542141194 and 31542141203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31542141221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15771070614 + 15771070615.

It is an arithmetic number, because the mean of its divisors is an integer number (15771070615).

Almost surely, 2^31542141229 is an apocalyptic number.

It is an amenable number.

31542141229 is a deficient number, since it is larger than the sum of its proper divisors (1).

31542141229 is an equidigital number, since it uses as much as digits as its factorization.

31542141229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The spelling of 31542141229 in words is "thirty-one billion, five hundred forty-two million, one hundred forty-one thousand, two hundred twenty-nine".