20020400102 has 8 divisors (see below), whose sum is σ = 30062314296. Its totient is φ = 9999628672.

The previous prime is 20020400093. The next prime is 20020400107. The reversal of 20020400102 is 20100402002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20020400102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020400107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5283323 + ... + 5287110.

It is an arithmetic number, because the mean of its divisors is an integer number (3757789287).

Almost surely, 2^20020400102 is an apocalyptic number.

20020400102 is a deficient number, since it is larger than the sum of its proper divisors (10041914194).

20020400102 is a wasteful number, since it uses less digits than its factorization.

20020400102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10571382.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20020400102 its reverse (20100402002), we get a palindrome (40120802104).

The spelling of 20020400102 in words is "twenty billion, twenty million, four hundred thousand, one hundred two".