61101035573 has 2 divisors, whose sum is σ = 61101035574. Its totient is φ = 61101035572.

The previous prime is 61101035561. The next prime is 61101035579. The reversal of 61101035573 is 37553010116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36245305924 + 24855729649 = 190382^2 + 157657^2 .

It is a cyclic number.

It is not a de Polignac number, because 61101035573 - 2⁶ = 61101035509 is a prime.

It is a super-2 number, since 2×61101035573² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61101035579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30550517786 + 30550517787.

It is an arithmetic number, because the mean of its divisors is an integer number (30550517787).

Almost surely, 2^61101035573 is an apocalyptic number.

It is an amenable number.

61101035573 is a deficient number, since it is larger than the sum of its proper divisors (1).

61101035573 is an equidigital number, since it uses as much as digits as its factorization.

61101035573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9450, while the sum is 32.

Adding to 61101035573 its reverse (37553010116), we get a palindrome (98654045689).

The spelling of 61101035573 in words is "sixty-one billion, one hundred one million, thirty-five thousand, five hundred seventy-three".