20003507021370 has 32 divisors (see below), whose sum is σ = 50832441373248. Its totient is φ = 5020488036608.

The previous prime is 20003507021339. The next prime is 20003507021371. The reversal of 20003507021370 is 7312070530002.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (20003507021371) 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 15 ways as a sum of consecutive naturals, for example, 19611280884 + ... + 19611281903.

It is an arithmetic number, because the mean of its divisors is an integer number (1588513792914).

Almost surely, 2^{20003507021370} is an apocalyptic number.

20003507021370 is an abundant number, since it is smaller than the sum of its proper divisors (30828934351878).

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

20003507021370 is a wasteful number, since it uses less digits than its factorization.

20003507021370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39222562814.

The product of its (nonzero) digits is 8820, while the sum is 30.

Adding to 20003507021370 its reverse (7312070530002), we get a palindrome (27315577551372).

The spelling of 20003507021370 in words is "twenty trillion, three billion, five hundred seven million, twenty-one thousand, three hundred seventy".