1011431421424 has 20 divisors (see below), whose sum is σ = 1960145495536. Its totient is φ = 505587422592.

The previous prime is 1011431421401. The next prime is 1011431421479. The reversal of 1011431421424 is 4241241341101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1011431421392 and 1011431421401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7952949 + ... + 8079124.

Almost surely, 2^{1011431421424} is an apocalyptic number.

It is an amenable number.

1011431421424 is a deficient number, since it is larger than the sum of its proper divisors (948714074112).

1011431421424 is a wasteful number, since it uses less digits than its factorization.

1011431421424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16036024 (or 16036018 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 1011431421424 its reverse (4241241341101), we get a palindrome (5252672762525).

The spelling of 1011431421424 in words is "one trillion, eleven billion, four hundred thirty-one million, four hundred twenty-one thousand, four hundred twenty-four".