61306225352231 has 2 divisors, whose sum is σ = 61306225352232. Its totient is φ = 61306225352230.

The previous prime is 61306225352219. The next prime is 61306225352237. The reversal of 61306225352231 is 13225352260316.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61306225352231 - 2⁶ = 61306225352167 is a prime.

It is a super-2 number, since 2×61306225352231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61306225352237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30653112676115 + 30653112676116.

It is an arithmetic number, because the mean of its divisors is an integer number (30653112676116).

Almost surely, 2^{61306225352231} is an apocalyptic number.

61306225352231 is a deficient number, since it is larger than the sum of its proper divisors (1).

61306225352231 is an equidigital number, since it uses as much as digits as its factorization.

61306225352231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 61306225352231 in words is "sixty-one trillion, three hundred six billion, two hundred twenty-five million, three hundred fifty-two thousand, two hundred thirty-one".