31544406241 has 2 divisors, whose sum is σ = 31544406242. Its totient is φ = 31544406240.

The previous prime is 31544406209. The next prime is 31544406247. The reversal of 31544406241 is 14260444513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16536931216 + 15007475025 = 128596^2 + 122505^2 .

It is a cyclic number.

It is not a de Polignac number, because 31544406241 - 2⁵ = 31544406209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31544406197 and 31544406206.

It is not a weakly prime, because it can be changed into another prime (31544406247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15772203120 + 15772203121.

It is an arithmetic number, because the mean of its divisors is an integer number (15772203121).

Almost surely, 2^31544406241 is an apocalyptic number.

It is an amenable number.

31544406241 is a deficient number, since it is larger than the sum of its proper divisors (1).

31544406241 is an equidigital number, since it uses as much as digits as its factorization.

31544406241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 31544406241 in words is "thirty-one billion, five hundred forty-four million, four hundred six thousand, two hundred forty-one".