1025124021100 has 18 divisors (see below), whose sum is σ = 2224519126004. Its totient is φ = 410049608400.

The previous prime is 1025124021091. The next prime is 1025124021107. The reversal of 1025124021100 is 11204215201.

It is not an unprimeable number, because it can be changed into a prime (1025124021107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5125620006 + ... + 5125620205.

Almost surely, 2^{1025124021100} is an apocalyptic number.

1025124021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025124021100 is an abundant number, since it is smaller than the sum of its proper divisors (1199395104904).

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

1025124021100 is a wasteful number, since it uses less digits than its factorization.

1025124021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10251240225 (or 10251240218 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 1025124021100 its reverse (11204215201), we get a palindrome (1036328236301).

The spelling of 1025124021100 in words is "one trillion, twenty-five billion, one hundred twenty-four million, twenty-one thousand, one hundred".