20434011131242 has 8 divisors (see below), whose sum is σ = 30654506534976. Its totient is φ = 10215842286252.

The previous prime is 20434011131167. The next prime is 20434011131251. The reversal of 20434011131242 is 24213111043402.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20434011131242.

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, 581617728 + ... + 581652859.

It is an arithmetic number, because the mean of its divisors is an integer number (3831813316872).

Almost surely, 2^{20434011131242} is an apocalyptic number.

20434011131242 is a deficient number, since it is larger than the sum of its proper divisors (10220495403734).

20434011131242 is a wasteful number, since it uses less digits than its factorization.

20434011131242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163279372.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 20434011131242 its reverse (24213111043402), we get a palindrome (44647122174644).

The spelling of 20434011131242 in words is "twenty trillion, four hundred thirty-four billion, eleven million, one hundred thirty-one thousand, two hundred forty-two".