20020101612503 has 2 divisors, whose sum is σ = 20020101612504. Its totient is φ = 20020101612502.

The previous prime is 20020101612473. The next prime is 20020101612541. The reversal of 20020101612503 is 30521610102002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20020101612503 - 2¹⁰ = 20020101611479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020101612593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010050806251 + 10010050806252.

It is an arithmetic number, because the mean of its divisors is an integer number (10010050806252).

Almost surely, 2^{20020101612503} is an apocalyptic number.

20020101612503 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020101612503 is an equidigital number, since it uses as much as digits as its factorization.

20020101612503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 20020101612503 its reverse (30521610102002), we get a palindrome (50541711714505).

The spelling of 20020101612503 in words is "twenty trillion, twenty billion, one hundred one million, six hundred twelve thousand, five hundred three".