1024431120020 has 48 divisors (see below), whose sum is σ = 2682146936448. Its totient is φ = 319303205760.

The previous prime is 1024431119993. The next prime is 1024431120043. The reversal of 1024431120020 is 200211344201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1024431119974 and 1024431120001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332605967 + ... + 332609046.

It is an arithmetic number, because the mean of its divisors is an integer number (55878061176).

Almost surely, 2^{1024431120020} is an apocalyptic number.

1024431120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1024431120020 is an abundant number, since it is smaller than the sum of its proper divisors (1657715816428).

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

1024431120020 is a wasteful number, since it uses less digits than its factorization.

1024431120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665215040 (or 665215038 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1024431120020 its reverse (200211344201), we get a palindrome (1224642464221).

The spelling of 1024431120020 in words is "one trillion, twenty-four billion, four hundred thirty-one million, one hundred twenty thousand, twenty".