40305210751213 has 2 divisors, whose sum is σ = 40305210751214. Its totient is φ = 40305210751212.

The previous prime is 40305210751111. The next prime is 40305210751231. The reversal of 40305210751213 is 31215701250304.

Together with next prime (40305210751231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40298157774889 + 7052976324 = 6348083^2 + 83982^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40305210751213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40305210755213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20152605375606 + 20152605375607.

It is an arithmetic number, because the mean of its divisors is an integer number (20152605375607).

Almost surely, 2^{40305210751213} is an apocalyptic number.

It is an amenable number.

40305210751213 is a deficient number, since it is larger than the sum of its proper divisors (1).

40305210751213 is an equidigital number, since it uses as much as digits as its factorization.

40305210751213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 40305210751213 in words is "forty trillion, three hundred five billion, two hundred ten million, seven hundred fifty-one thousand, two hundred thirteen".