101210223123 has 12 divisors (see below), whose sum is σ = 146198789568. Its totient is φ = 67470599760.

The previous prime is 101210223119. The next prime is 101210223137. The reversal of 101210223123 is 321322012101.

It is not a de Polignac number, because 101210223123 - 2² = 101210223119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101210223096 and 101210223105.

It is not an unprimeable number, because it can be changed into a prime (101210223173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5763 + ... + 449948.

It is an arithmetic number, because the mean of its divisors is an integer number (12183232464).

Almost surely, 2^101210223123 is an apocalyptic number.

101210223123 is a deficient number, since it is larger than the sum of its proper divisors (44988566445).

101210223123 is a wasteful number, since it uses less digits than its factorization.

101210223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480394 (or 480391 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 101210223123 its reverse (321322012101), we get a palindrome (422532235224).

The spelling of 101210223123 in words is "one hundred one billion, two hundred ten million, two hundred twenty-three thousand, one hundred twenty-three".