42121130451 has 8 divisors (see below), whose sum is σ = 56930843280. Its totient is φ = 27696085632.

The previous prime is 42121130437. The next prime is 42121130473. The reversal of 42121130451 is 15403112124.

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

It is not a de Polignac number, because 42121130451 - 2¹⁴ = 42121114067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42121130851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96166746 + ... + 96167183.

It is an arithmetic number, because the mean of its divisors is an integer number (7116355410).

Almost surely, 2^42121130451 is an apocalyptic number.

42121130451 is a deficient number, since it is larger than the sum of its proper divisors (14809712829).

42121130451 is a wasteful number, since it uses less digits than its factorization.

42121130451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192334005.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 42121130451 its reverse (15403112124), we get a palindrome (57524242575).

The spelling of 42121130451 in words is "forty-two billion, one hundred twenty-one million, one hundred thirty thousand, four hundred fifty-one".