421120011345 has 128 divisors (see below), whose sum is σ = 771914465280. Its totient is φ = 194190048000.

The previous prime is 421120011317. The next prime is 421120011401. The reversal of 421120011345 is 543110021124.

It is not a de Polignac number, because 421120011345 - 2⁵ = 421120011313 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 91725000 + ... + 91729590.

It is an arithmetic number, because the mean of its divisors is an integer number (6030581760).

Almost surely, 2^421120011345 is an apocalyptic number.

It is an amenable number.

421120011345 is a deficient number, since it is larger than the sum of its proper divisors (350794453935).

421120011345 is a wasteful number, since it uses less digits than its factorization.

421120011345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4947.

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

Adding to 421120011345 its reverse (543110021124), we get a palindrome (964230032469).

The spelling of 421120011345 in words is "four hundred twenty-one billion, one hundred twenty million, eleven thousand, three hundred forty-five".