1020202553140 has 24 divisors (see below), whose sum is σ = 2148897959712. Its totient is φ = 406848145440.

The previous prime is 1020202553129. The next prime is 1020202553203. The reversal of 1020202553140 is 413552020201.

It is a congruent number.

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, 77047954 + ... + 77061193.

It is an arithmetic number, because the mean of its divisors is an integer number (89537414988).

Almost surely, 2^{1020202553140} is an apocalyptic number.

1020202553140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020202553140 is an abundant number, since it is smaller than the sum of its proper divisors (1128695406572).

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

1020202553140 is a wasteful number, since it uses less digits than its factorization.

1020202553140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154109487 (or 154109485 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 1020202553140 its reverse (413552020201), we get a palindrome (1433754573341).

The spelling of 1020202553140 in words is "one trillion, twenty billion, two hundred two million, five hundred fifty-three thousand, one hundred forty".