1020623252200 has 24 divisors (see below), whose sum is σ = 2372949061830. Its totient is φ = 408249300800.

The previous prime is 1020623252171. The next prime is 1020623252237. The reversal of 1020623252200 is 22523260201.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 503699639524 + 516923612676 = 709718^2 + 718974^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2551557931 + ... + 2551558330.

Almost surely, 2^{1020623252200} is an apocalyptic number.

1020623252200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020623252200 is an abundant number, since it is smaller than the sum of its proper divisors (1352325809630).

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

1020623252200 is a wasteful number, since it uses less digits than its factorization.

1020623252200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5103116277 (or 5103116268 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The spelling of 1020623252200 in words is "one trillion, twenty billion, six hundred twenty-three million, two hundred fifty-two thousand, two hundred".