61370203171 has 2 divisors, whose sum is σ = 61370203172. Its totient is φ = 61370203170.

The previous prime is 61370203109. The next prime is 61370203199. The reversal of 61370203171 is 17130207316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61370203171 - 2⁷ = 61370203043 is a prime.

It is not a weakly prime, because it can be changed into another prime (61370203771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30685101585 + 30685101586.

It is an arithmetic number, because the mean of its divisors is an integer number (30685101586).

Almost surely, 2^61370203171 is an apocalyptic number.

61370203171 is a deficient number, since it is larger than the sum of its proper divisors (1).

61370203171 is an equidigital number, since it uses as much as digits as its factorization.

61370203171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The spelling of 61370203171 in words is "sixty-one billion, three hundred seventy million, two hundred three thousand, one hundred seventy-one".