1431207381228 has 48 divisors (see below), whose sum is σ = 3556363073760. Its totient is φ = 446410814464.

The previous prime is 1431207381203. The next prime is 1431207381229. The reversal of 1431207381228 is 8221837021341.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1431207381228.

It is not an unprimeable number, because it can be changed into a prime (1431207381229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20241363 + ... + 20311946.

It is an arithmetic number, because the mean of its divisors is an integer number (74090897370).

Almost surely, 2^{1431207381228} is an apocalyptic number.

It is an amenable number.

1431207381228 is an abundant number, since it is smaller than the sum of its proper divisors (2125155692532).

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

1431207381228 is a wasteful number, since it uses less digits than its factorization.

1431207381228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40553506 (or 40553504 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 1431207381228 in words is "one trillion, four hundred thirty-one billion, two hundred seven million, three hundred eighty-one thousand, two hundred twenty-eight".