1431133420 has 24 divisors (see below), whose sum is σ = 3006136224. Its totient is φ = 572309376.

The previous prime is 1431133411. The next prime is 1431133421. The reversal of 1431133420 is 243311341.

It is a junction number, because it is equal to n+sod(n) for n = 1431133391 and 1431133400.

It is not an unprimeable number, because it can be changed into a prime (1431133421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 112504 + ... + 124576.

It is an arithmetic number, because the mean of its divisors is an integer number (125255676).

Almost surely, 2^1431133420 is an apocalyptic number.

1431133420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431133420 is an abundant number, since it is smaller than the sum of its proper divisors (1575002804).

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

1431133420 is a wasteful number, since it uses less digits than its factorization.

1431133420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18009 (or 18007 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1431133420 is about 37830.3240800287. The cubic root of 1431133420 is about 1126.9207470959.

Adding to 1431133420 its reverse (243311341), we get a palindrome (1674444761).

The spelling of 1431133420 in words is "one billion, four hundred thirty-one million, one hundred thirty-three thousand, four hundred twenty".