1020240502040 has 64 divisors (see below), whose sum is σ = 2325051842400. Its totient is φ = 402871062528.

The previous prime is 1020240502037. The next prime is 1020240502093. The reversal of 1020240502040 is 402050420201.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1209191 + ... + 1871529.

Almost surely, 2^{1020240502040} is an apocalyptic number.

1020240502040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020240502040 is an abundant number, since it is smaller than the sum of its proper divisors (1304811340360).

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

1020240502040 is a wasteful number, since it uses less digits than its factorization.

1020240502040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662844 (or 662840 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 1020240502040 its reverse (402050420201), we get a palindrome (1422290922241).

The spelling of 1020240502040 in words is "one trillion, twenty billion, two hundred forty million, five hundred two thousand, forty".