20203204121402 has 16 divisors (see below), whose sum is σ = 30318567072552. Its totient is φ = 10097015385600.

The previous prime is 20203204121389. The next prime is 20203204121431. The reversal of 20203204121402 is 20412140230202.

It can be written as a sum of positive squares in 4 ways, for example, as 19849439683441 + 353764437961 = 4455271^2 + 594781^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204434402 + ... + 204533202.

Almost surely, 2^{20203204121402} is an apocalyptic number.

20203204121402 is a deficient number, since it is larger than the sum of its proper divisors (10115362951150).

20203204121402 is a wasteful number, since it uses less digits than its factorization.

20203204121402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144193.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20203204121402 its reverse (20412140230202), we get a palindrome (40615344351604).

The spelling of 20203204121402 in words is "twenty trillion, two hundred three billion, two hundred four million, one hundred twenty-one thousand, four hundred two".