20103005145452 has 24 divisors (see below), whose sum is σ = 35221832960496. Its totient is φ = 10039625422848.

The previous prime is 20103005145383. The next prime is 20103005145479. The reversal of 20103005145452 is 25454150030102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77832908 + ... + 78090764.

It is an arithmetic number, because the mean of its divisors is an integer number (1467576373354).

Almost surely, 2^{20103005145452} is an apocalyptic number.

It is an amenable number.

20103005145452 is a deficient number, since it is larger than the sum of its proper divisors (15118827815044).

20103005145452 is a wasteful number, since it uses less digits than its factorization.

20103005145452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280817 (or 280815 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 20103005145452 its reverse (25454150030102), we get a palindrome (45557155175554).

The spelling of 20103005145452 in words is "twenty trillion, one hundred three billion, five million, one hundred forty-five thousand, four hundred fifty-two".