61071390311 has 2 divisors, whose sum is σ = 61071390312. Its totient is φ = 61071390310.

The previous prime is 61071390283. The next prime is 61071390323. The reversal of 61071390311 is 11309317016.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61071390311 - 2³⁴ = 43891521127 is a prime.

It is a super-3 number, since 3×61071390311³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61071390371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30535695155 + 30535695156.

It is an arithmetic number, because the mean of its divisors is an integer number (30535695156).

Almost surely, 2^61071390311 is an apocalyptic number.

61071390311 is a deficient number, since it is larger than the sum of its proper divisors (1).

61071390311 is an equidigital number, since it uses as much as digits as its factorization.

61071390311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The spelling of 61071390311 in words is "sixty-one billion, seventy-one million, three hundred ninety thousand, three hundred eleven".