31454224229 has 2 divisors, whose sum is σ = 31454224230. Its totient is φ = 31454224228.

The previous prime is 31454224199. The next prime is 31454224289. The reversal of 31454224229 is 92242245413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31178730625 + 275493604 = 176575^2 + 16598^2 .

It is a cyclic number.

It is not a de Polignac number, because 31454224229 - 2²⁰ = 31453175653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31454224192 and 31454224201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31454224289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15727112114 + 15727112115.

It is an arithmetic number, because the mean of its divisors is an integer number (15727112115).

Almost surely, 2^31454224229 is an apocalyptic number.

It is an amenable number.

31454224229 is a deficient number, since it is larger than the sum of its proper divisors (1).

31454224229 is an equidigital number, since it uses as much as digits as its factorization.

31454224229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 38.

The spelling of 31454224229 in words is "thirty-one billion, four hundred fifty-four million, two hundred twenty-four thousand, two hundred twenty-nine".