1431121432240 has 40 divisors (see below), whose sum is σ = 3330078209568. Its totient is φ = 571980464640.

The previous prime is 1431121432189. The next prime is 1431121432387. The reversal of 1431121432240 is 422341211341.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1431121432240² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1431121432199 and 1431121432208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7215741 + ... + 7411420.

Almost surely, 2^{1431121432240} is an apocalyptic number.

1431121432240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431121432240 is an abundant number, since it is smaller than the sum of its proper divisors (1898956777328).

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

1431121432240 is a wasteful number, since it uses less digits than its factorization.

1431121432240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14628397 (or 14628391 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1431121432240 its reverse (422341211341), we get a palindrome (1853462643581).

The spelling of 1431121432240 in words is "one trillion, four hundred thirty-one billion, one hundred twenty-one million, four hundred thirty-two thousand, two hundred forty".