1231452500011 has 2 divisors, whose sum is σ = 1231452500012. Its totient is φ = 1231452500010.

The previous prime is 1231452499997. The next prime is 1231452500021. The reversal of 1231452500011 is 1100052541321.

It is a strong prime.

It is an emirp because it is prime and its reverse (1100052541321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1231452500011 - 2²¹ = 1231450402859 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231452500021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615726250005 + 615726250006.

It is an arithmetic number, because the mean of its divisors is an integer number (615726250006).

Almost surely, 2^{1231452500011} is an apocalyptic number.

1231452500011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231452500011 is an equidigital number, since it uses as much as digits as its factorization.

1231452500011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 1231452500011 in words is "one trillion, two hundred thirty-one billion, four hundred fifty-two million, five hundred thousand, eleven".