61301642231 has 2 divisors, whose sum is σ = 61301642232. Its totient is φ = 61301642230.

The previous prime is 61301642131. The next prime is 61301642263. The reversal of 61301642231 is 13224610316.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61301642231 is a prime.

It is a super-2 number, since 2×61301642231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61301642194 and 61301642203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61301642131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30650821115 + 30650821116.

It is an arithmetic number, because the mean of its divisors is an integer number (30650821116).

Almost surely, 2^61301642231 is an apocalyptic number.

61301642231 is a deficient number, since it is larger than the sum of its proper divisors (1).

61301642231 is an equidigital number, since it uses as much as digits as its factorization.

61301642231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 61301642231 in words is "sixty-one billion, three hundred one million, six hundred forty-two thousand, two hundred thirty-one".