1242494254633 has 2 divisors, whose sum is σ = 1242494254634. Its totient is φ = 1242494254632.

The previous prime is 1242494254579. The next prime is 1242494254643. The reversal of 1242494254633 is 3364524942421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1067981698624 + 174512556009 = 1033432^2 + 417747^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242494254633 - 2²⁹ = 1241957383721 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242494254643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621247127316 + 621247127317.

It is an arithmetic number, because the mean of its divisors is an integer number (621247127317).

Almost surely, 2^{1242494254633} is an apocalyptic number.

It is an amenable number.

1242494254633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242494254633 is an equidigital number, since it uses as much as digits as its factorization.

1242494254633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4976640, while the sum is 49.

The spelling of 1242494254633 in words is "one trillion, two hundred forty-two billion, four hundred ninety-four million, two hundred fifty-four thousand, six hundred thirty-three".