1243020230242 has 16 divisors (see below), whose sum is σ = 2199630269952. Its totient is φ = 515538344160.

The previous prime is 1243020230219. The next prime is 1243020230303. The reversal of 1243020230242 is 2420320203421.

It is a super-4 number, since 4×1243020230242⁴ (a number of 49 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1432050523 + ... + 1432051390.

It is an arithmetic number, because the mean of its divisors is an integer number (137476891872).

Almost surely, 2^{1243020230242} is an apocalyptic number.

1243020230242 is a deficient number, since it is larger than the sum of its proper divisors (956610039710).

1243020230242 is a wasteful number, since it uses less digits than its factorization.

1243020230242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864101953.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 1243020230242 its reverse (2420320203421), we get a palindrome (3663340433663).

The spelling of 1243020230242 in words is "one trillion, two hundred forty-three billion, twenty million, two hundred thirty thousand, two hundred forty-two".