1253433420242 has 8 divisors (see below), whose sum is σ = 1880159040432. Its totient is φ = 626713740100.

The previous prime is 1253433420227. The next prime is 1253433420257. The reversal of 1253433420242 is 2420243343521.

It is an interprime number because it is at equal distance from previous prime (1253433420227) and next prime (1253433420257).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913484 + ... + 1827927.

It is an arithmetic number, because the mean of its divisors is an integer number (235019880054).

Almost surely, 2^{1253433420242} is an apocalyptic number.

1253433420242 is a deficient number, since it is larger than the sum of its proper divisors (626725620190).

1253433420242 is a wasteful number, since it uses less digits than its factorization.

1253433420242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970024.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 1253433420242 its reverse (2420243343521), we get a palindrome (3673676763763).

The spelling of 1253433420242 in words is "one trillion, two hundred fifty-three billion, four hundred thirty-three million, four hundred twenty thousand, two hundred forty-two".