20203120002 has 32 divisors (see below), whose sum is σ = 43603846272. Its totient is φ = 6203568384.

The previous prime is 20203119997. The next prime is 20203120009. The reversal of 20203120002 is 20002130202.

It is a self number, because there is not a number n which added to its sum of digits gives 20203120002.

It is not an unprimeable number, because it can be changed into a prime (20203120009) 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, 227943 + ... + 303914.

It is an arithmetic number, because the mean of its divisors is an integer number (1362620196).

Almost surely, 2^20203120002 is an apocalyptic number.

20203120002 is an abundant number, since it is smaller than the sum of its proper divisors (23400726270).

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

20203120002 is a wasteful number, since it uses less digits than its factorization.

20203120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532362.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20203120002 its reverse (20002130202), we get a palindrome (40205250204).

The spelling of 20203120002 in words is "twenty billion, two hundred three million, one hundred twenty thousand, two".