61311130004 has 12 divisors (see below), whose sum is σ = 107509500000. Its totient is φ = 30594130008.

The previous prime is 61311129977. The next prime is 61311130007. The reversal of 61311130004 is 40003111316.

61311130004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61311130007) 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, 15356504 + ... + 15360495.

It is an arithmetic number, because the mean of its divisors is an integer number (8959125000).

Almost surely, 2^61311130004 is an apocalyptic number.

It is an amenable number.

61311130004 is a deficient number, since it is larger than the sum of its proper divisors (46198369996).

61311130004 is a wasteful number, since it uses less digits than its factorization.

61311130004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30717502 (or 30717500 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 61311130004 in words is "sixty-one billion, three hundred eleven million, one hundred thirty thousand, four".