61030385133 has 16 divisors (see below), whose sum is σ = 82181973120. Its totient is φ = 40283034624.

The previous prime is 61030385123. The next prime is 61030385149. The reversal of 61030385133 is 33158303016.

It is not a de Polignac number, because 61030385133 - 2¹⁰ = 61030384109 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61030385094 and 61030385103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61030385123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1573113 + ... + 1611441.

It is an arithmetic number, because the mean of its divisors is an integer number (5136373320).

Almost surely, 2^61030385133 is an apocalyptic number.

It is an amenable number.

61030385133 is a deficient number, since it is larger than the sum of its proper divisors (21151587987).

61030385133 is a wasteful number, since it uses less digits than its factorization.

61030385133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43588.

The product of its (nonzero) digits is 19440, while the sum is 33.

Adding to 61030385133 its reverse (33158303016), we get a palindrome (94188688149).

The spelling of 61030385133 in words is "sixty-one billion, thirty million, three hundred eighty-five thousand, one hundred thirty-three".