1431113652520 has 32 divisors (see below), whose sum is σ = 3256185565800. Its totient is φ = 566013488128.

The previous prime is 1431113652481. The next prime is 1431113652533. The reversal of 1431113652520 is 252563111341.

It can be written as a sum of positive squares in 4 ways, for example, as 1313668991716 + 117444660804 = 1146154^2 + 342702^2 .

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 7 ways as a sum of consecutive naturals, for example, 200995549 + ... + 201002668.

Almost surely, 2^{1431113652520} is an apocalyptic number.

1431113652520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431113652520 is an abundant number, since it is smaller than the sum of its proper divisors (1825071913280).

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

1431113652520 is a wasteful number, since it uses less digits than its factorization.

1431113652520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401998317 (or 401998313 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 1431113652520 its reverse (252563111341), we get a palindrome (1683676763861).

The spelling of 1431113652520 in words is "one trillion, four hundred thirty-one billion, one hundred thirteen million, six hundred fifty-two thousand, five hundred twenty".