20003507017420 has 12 divisors (see below), whose sum is σ = 42007364736624. Its totient is φ = 8001402806960.

The previous prime is 20003507017411. The next prime is 20003507017423. The reversal of 20003507017420 is 2471070530002.

It is not an unprimeable number, because it can be changed into a prime (20003507017423) 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 3 ways as a sum of consecutive naturals, for example, 500087675416 + ... + 500087675455.

It is an arithmetic number, because the mean of its divisors is an integer number (3500613728052).

Almost surely, 2^{20003507017420} is an apocalyptic number.

20003507017420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003507017420 is an abundant number, since it is smaller than the sum of its proper divisors (22003857719204).

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

20003507017420 is a wasteful number, since it uses less digits than its factorization.

20003507017420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000175350880 (or 1000175350878 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

Adding to 20003507017420 its reverse (2471070530002), we get a palindrome (22474577547422).

The spelling of 20003507017420 in words is "twenty trillion, three billion, five hundred seven million, seventeen thousand, four hundred twenty".