431121000442 has 16 divisors (see below), whose sum is σ = 706561123392. Its totient is φ = 195661203520.

The previous prime is 431121000439. The next prime is 431121000451. The reversal of 431121000442 is 244000121134.

It is a happy number.

It is a super-2 number, since 2×431121000442² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15129823 + ... + 15158290.

It is an arithmetic number, because the mean of its divisors is an integer number (44160070212).

Almost surely, 2^431121000442 is an apocalyptic number.

431121000442 is a deficient number, since it is larger than the sum of its proper divisors (275440122950).

431121000442 is a wasteful number, since it uses less digits than its factorization.

431121000442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30288773.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 431121000442 its reverse (244000121134), we get a palindrome (675121121576).

The spelling of 431121000442 in words is "four hundred thirty-one billion, one hundred twenty-one million, four hundred forty-two", and thus it is an aban number.