1020425342520 has 64 divisors (see below), whose sum is σ = 3194374993920. Its totient is φ = 260282405504.

The previous prime is 1020425342509. The next prime is 1020425342537. The reversal of 1020425342520 is 252435240201.

1020425342520 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 184856904 + ... + 184862423.

It is an arithmetic number, because the mean of its divisors is an integer number (49912109280).

Almost surely, 2^{1020425342520} is an apocalyptic number.

1020425342520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020425342520 is an abundant number, since it is smaller than the sum of its proper divisors (2173949651400).

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

1020425342520 is a wasteful number, since it uses less digits than its factorization.

1020425342520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369719364 (or 369719360 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 1020425342520 in words is "one trillion, twenty billion, four hundred twenty-five million, three hundred forty-two thousand, five hundred twenty".