20020120102 has 4 divisors (see below), whose sum is σ = 30030180156. Its totient is φ = 10010060050.

The previous prime is 20020120079. The next prime is 20020120123. The reversal of 20020120102 is 20102102002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20102102002 = 2 ⋅10051051001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005030024 + ... + 5005030027.

It is an arithmetic number, because the mean of its divisors is an integer number (7507545039).

Almost surely, 2^20020120102 is an apocalyptic number.

20020120102 is a deficient number, since it is larger than the sum of its proper divisors (10010060054).

20020120102 is a wasteful number, since it uses less digits than its factorization.

20020120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010060053.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20020120102 its reverse (20102102002), we get a palindrome (40122222104).

The spelling of 20020120102 in words is "twenty billion, twenty million, one hundred twenty thousand, one hundred two".