1211030404242 has 32 divisors (see below), whose sum is σ = 2512150887744. Its totient is φ = 388877832000.

The previous prime is 1211030404237. The next prime is 1211030404249. The reversal of 1211030404242 is 2424040301121.

It is not an unprimeable number, because it can be changed into a prime (1211030404249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26982984 + ... + 27027827.

It is an arithmetic number, because the mean of its divisors is an integer number (78504715242).

Almost surely, 2^{1211030404242} is an apocalyptic number.

1211030404242 is an abundant number, since it is smaller than the sum of its proper divisors (1301120483502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211030404242 is a wasteful number, since it uses less digits than its factorization.

1211030404242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54010954.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1211030404242 its reverse (2424040301121), we get a palindrome (3635070705363).

The spelling of 1211030404242 in words is "one trillion, two hundred eleven billion, thirty million, four hundred four thousand, two hundred forty-two".