1431132420 has 48 divisors (see below), whose sum is σ = 4242889728. Its totient is φ = 359185920.

The previous prime is 1431132419. The next prime is 1431132449. The reversal of 1431132420 is 242311341.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700516 + ... + 702555.

It is an arithmetic number, because the mean of its divisors is an integer number (88393536).

Almost surely, 2^1431132420 is an apocalyptic number.

1431132420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431132420 is an abundant number, since it is smaller than the sum of its proper divisors (2811757308).

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

1431132420 is a wasteful number, since it uses less digits than its factorization.

1431132420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403100 (or 1403098 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1431132420 is about 37830.3108631161. The cubic root of 1431132420 is about 1126.9204846184.

Adding to 1431132420 its reverse (242311341), we get a palindrome (1673443761).

The spelling of 1431132420 in words is "one billion, four hundred thirty-one million, one hundred thirty-two thousand, four hundred twenty".