1021012210123 has 8 divisors (see below), whose sum is σ = 1041861265200. Its totient is φ = 1000281280608.

The previous prime is 1021012210103. The next prime is 1021012210177. The reversal of 1021012210123 is 3210122101201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021012210123 - 2¹³ = 1021012201931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021012210097 and 1021012210106.

It is not an unprimeable number, because it can be changed into a prime (1021012210103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29513928 + ... + 29548501.

It is an arithmetic number, because the mean of its divisors is an integer number (130232658150).

Almost surely, 2^{1021012210123} is an apocalyptic number.

1021012210123 is a deficient number, since it is larger than the sum of its proper divisors (20849055077).

1021012210123 is an equidigital number, since it uses as much as digits as its factorization.

1021012210123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59062781.

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

Adding to 1021012210123 its reverse (3210122101201), we get a palindrome (4231134311324).

The spelling of 1021012210123 in words is "one trillion, twenty-one billion, twelve million, two hundred ten thousand, one hundred twenty-three".