20103125459784 has 64 divisors (see below), whose sum is σ = 53221916816640. Its totient is φ = 6305943045120.

The previous prime is 20103125459777. The next prime is 20103125459789. The reversal of 20103125459784 is 48795452130102.

It is a super-2 number, since 2×20103125459784² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (20103125459789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 789607 + ... + 6389814.

It is an arithmetic number, because the mean of its divisors is an integer number (831592450260).

Almost surely, 2^{20103125459784} is an apocalyptic number.

20103125459784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20103125459784 is an abundant number, since it is smaller than the sum of its proper divisors (33118791356856).

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

20103125459784 is a wasteful number, since it uses less digits than its factorization.

20103125459784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7186310 (or 7186306 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

Adding to 20103125459784 its reverse (48795452130102), we get a palindrome (68898577589886).

The spelling of 20103125459784 in words is "twenty trillion, one hundred three billion, one hundred twenty-five million, four hundred fifty-nine thousand, seven hundred eighty-four".