102020010123 has 16 divisors (see below), whose sum is σ = 143286433920. Its totient is φ = 64388486016.

The previous prime is 102020010119. The next prime is 102020010133. The reversal of 102020010123 is 321010020201.

It is not a de Polignac number, because 102020010123 - 2² = 102020010119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102020010099 and 102020010108.

It is not an unprimeable number, because it can be changed into a prime (102020010133) 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 15 ways as a sum of consecutive naturals, for example, 545790 + ... + 708467.

It is an arithmetic number, because the mean of its divisors is an integer number (8955402120).

Almost surely, 2^102020010123 is an apocalyptic number.

102020010123 is a deficient number, since it is larger than the sum of its proper divisors (41266423797).

102020010123 is a wasteful number, since it uses less digits than its factorization.

102020010123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255706.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 102020010123 its reverse (321010020201), we get a palindrome (423030030324).

The spelling of 102020010123 in words is "one hundred two billion, twenty million, ten thousand, one hundred twenty-three".