10021210102123 has 4 divisors (see below), whose sum is σ = 10932229202328. Its totient is φ = 9110191001920.

The previous prime is 10021210102121. The next prime is 10021210102237. The reversal of 10021210102123 is 32120101212001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10021210102123 - 2¹ = 10021210102121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021210102097 and 10021210102106.

It is not an unprimeable number, because it can be changed into a prime (10021210102121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455509550086 + ... + 455509550107.

It is an arithmetic number, because the mean of its divisors is an integer number (2733057300582).

Almost surely, 2^{10021210102123} is an apocalyptic number.

10021210102123 is a deficient number, since it is larger than the sum of its proper divisors (911019100205).

10021210102123 is an equidigital number, since it uses as much as digits as its factorization.

10021210102123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911019100204.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10021210102123 its reverse (32120101212001), we get a palindrome (42141311314124).

The spelling of 10021210102123 in words is "ten trillion, twenty-one billion, two hundred ten million, one hundred two thousand, one hundred twenty-three".