61003102961 has 4 divisors (see below), whose sum is σ = 62970945024. Its totient is φ = 59035260900.

The previous prime is 61003102949. The next prime is 61003102999. The reversal of 61003102961 is 16920130016.

61003102961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61003102961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61003102921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983920985 + ... + 983921046.

It is an arithmetic number, because the mean of its divisors is an integer number (15742736256).

Almost surely, 2^61003102961 is an apocalyptic number.

It is an amenable number.

61003102961 is a deficient number, since it is larger than the sum of its proper divisors (1967842063).

61003102961 is a wasteful number, since it uses less digits than its factorization.

61003102961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967842062.

The product of its (nonzero) digits is 1944, while the sum is 29.

Adding to 61003102961 its reverse (16920130016), we get a palindrome (77923232977).

The spelling of 61003102961 in words is "sixty-one billion, three million, one hundred two thousand, nine hundred sixty-one".