1231203022267 has 2 divisors, whose sum is σ = 1231203022268. Its totient is φ = 1231203022266.

The previous prime is 1231203022219. The next prime is 1231203022307. The reversal of 1231203022267 is 7622203021321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1231203022267 - 2⁷ = 1231203022139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231203025267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615601511133 + 615601511134.

It is an arithmetic number, because the mean of its divisors is an integer number (615601511134).

Almost surely, 2^{1231203022267} is an apocalyptic number.

1231203022267 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231203022267 is an equidigital number, since it uses as much as digits as its factorization.

1231203022267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

Adding to 1231203022267 its reverse (7622203021321), we get a palindrome (8853406043588).

The spelling of 1231203022267 in words is "one trillion, two hundred thirty-one billion, two hundred three million, twenty-two thousand, two hundred sixty-seven".