31357658141 has 2 divisors, whose sum is σ = 31357658142. Its totient is φ = 31357658140.

The previous prime is 31357658117. The next prime is 31357658179. The reversal of 31357658141 is 14185675313.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18033804100 + 13323854041 = 134290^2 + 115429^2 .

It is a cyclic number.

It is not a de Polignac number, because 31357658141 - 2⁶ = 31357658077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31357658092 and 31357658101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31357658441) 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 as a sum of consecutive naturals, namely, 15678829070 + 15678829071.

It is an arithmetic number, because the mean of its divisors is an integer number (15678829071).

Almost surely, 2^31357658141 is an apocalyptic number.

It is an amenable number.

31357658141 is a deficient number, since it is larger than the sum of its proper divisors (1).

31357658141 is an equidigital number, since it uses as much as digits as its factorization.

31357658141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 44.

The spelling of 31357658141 in words is "thirty-one billion, three hundred fifty-seven million, six hundred fifty-eight thousand, one hundred forty-one".