61303135311203 has 2 divisors, whose sum is σ = 61303135311204. Its totient is φ = 61303135311202.

The previous prime is 61303135311157. The next prime is 61303135311233. The reversal of 61303135311203 is 30211353130316.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61303135311203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61303135311203.

It is not a weakly prime, because it can be changed into another prime (61303135311233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30651567655601 + 30651567655602.

It is an arithmetic number, because the mean of its divisors is an integer number (30651567655602).

Almost surely, 2^{61303135311203} is an apocalyptic number.

61303135311203 is a deficient number, since it is larger than the sum of its proper divisors (1).

61303135311203 is an equidigital number, since it uses as much as digits as its factorization.

61303135311203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 32.

Adding to 61303135311203 its reverse (30211353130316), we get a palindrome (91514488441519).

The spelling of 61303135311203 in words is "sixty-one trillion, three hundred three billion, one hundred thirty-five million, three hundred eleven thousand, two hundred three".