1245203770231 has 2 divisors, whose sum is σ = 1245203770232. Its totient is φ = 1245203770230.

The previous prime is 1245203770171. The next prime is 1245203770253. The reversal of 1245203770231 is 1320773025421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1245203770231 - 2¹⁹ = 1245203245943 is a prime.

It is a super-2 number, since 2×1245203770231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245203779231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622601885115 + 622601885116.

It is an arithmetic number, because the mean of its divisors is an integer number (622601885116).

Almost surely, 2^{1245203770231} is an apocalyptic number.

1245203770231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245203770231 is an equidigital number, since it uses as much as digits as its factorization.

1245203770231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 37.

Adding to 1245203770231 its reverse (1320773025421), we get a palindrome (2565976795652).

The spelling of 1245203770231 in words is "one trillion, two hundred forty-five billion, two hundred three million, seven hundred seventy thousand, two hundred thirty-one".