12631045541 has 2 divisors, whose sum is σ = 12631045542. Its totient is φ = 12631045540.

The previous prime is 12631045529. The next prime is 12631045561. The reversal of 12631045541 is 14554013621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12305243041 + 325802500 = 110929^2 + 18050^2 .

It is a cyclic number.

It is not a de Polignac number, because 12631045541 - 2¹⁴ = 12631029157 is a prime.

It is a super-2 number, since 2×12631045541² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12631045498 and 12631045507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12631045561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315522770 + 6315522771.

It is an arithmetic number, because the mean of its divisors is an integer number (6315522771).

Almost surely, 2^12631045541 is an apocalyptic number.

It is an amenable number.

12631045541 is a deficient number, since it is larger than the sum of its proper divisors (1).

12631045541 is an equidigital number, since it uses as much as digits as its factorization.

12631045541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 12631045541 in words is "twelve billion, six hundred thirty-one million, forty-five thousand, five hundred forty-one".