31455224041 has 2 divisors, whose sum is σ = 31455224042. Its totient is φ = 31455224040.

The previous prime is 31455224011. The next prime is 31455224093. The reversal of 31455224041 is 14042255413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22953462016 + 8501762025 = 151504^2 + 92205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31455224041 is a prime.

It is a super-2 number, since 2×31455224041² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31455223994 and 31455224012.

It is not a weakly prime, because it can be changed into another prime (31455224011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15727612020 + 15727612021.

It is an arithmetic number, because the mean of its divisors is an integer number (15727612021).

Almost surely, 2^31455224041 is an apocalyptic number.

It is an amenable number.

31455224041 is a deficient number, since it is larger than the sum of its proper divisors (1).

31455224041 is an equidigital number, since it uses as much as digits as its factorization.

31455224041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 31455224041 its reverse (14042255413), we get a palindrome (45497479454).

The spelling of 31455224041 in words is "thirty-one billion, four hundred fifty-five million, two hundred twenty-four thousand, forty-one".