61211536003 has 2 divisors, whose sum is σ = 61211536004. Its totient is φ = 61211536002.

The previous prime is 61211535997. The next prime is 61211536019. The reversal of 61211536003 is 30063511216.

61211536003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61211536003 - 2¹⁷ = 61211404931 is a prime.

It is not a weakly prime, because it can be changed into another prime (61211536033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30605768001 + 30605768002.

It is an arithmetic number, because the mean of its divisors is an integer number (30605768002).

Almost surely, 2^61211536003 is an apocalyptic number.

61211536003 is a deficient number, since it is larger than the sum of its proper divisors (1).

61211536003 is an equidigital number, since it uses as much as digits as its factorization.

61211536003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 61211536003 in words is "sixty-one billion, two hundred eleven million, five hundred thirty-six thousand, three".