20102021020123 has 8 divisors (see below), whose sum is σ = 23003613137120. Its totient is φ = 17207897610240.

The previous prime is 20102021020073. The next prime is 20102021020201. The reversal of 20102021020123 is 32102012020102.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20102021020123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20102021020097 and 20102021020106.

It is not an unprimeable number, because it can be changed into a prime (20102021024123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1867171008 + ... + 1867181773.

It is an arithmetic number, because the mean of its divisors is an integer number (2875451642140).

Almost surely, 2^{20102021020123} is an apocalyptic number.

20102021020123 is a deficient number, since it is larger than the sum of its proper divisors (2901592116997).

20102021020123 is an equidigital number, since it uses as much as digits as its factorization.

20102021020123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734353557.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20102021020123 its reverse (32102012020102), we get a palindrome (52204033040225).

The spelling of 20102021020123 in words is "twenty trillion, one hundred two billion, twenty-one million, twenty thousand, one hundred twenty-three".