101210212123 has 8 divisors (see below), whose sum is σ = 101361337200. Its totient is φ = 101059166208.

The previous prime is 101210212097. The next prime is 101210212133. The reversal of 101210212123 is 321212012101.

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-101210212123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101210212097 and 101210212106.

It is not an unprimeable number, because it can be changed into a prime (101210212133) 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, 2841915 + ... + 2877307.

It is an arithmetic number, because the mean of its divisors is an integer number (12670167150).

Almost surely, 2^101210212123 is an apocalyptic number.

101210212123 is a deficient number, since it is larger than the sum of its proper divisors (151125077).

101210212123 is an equidigital number, since it uses as much as digits as its factorization.

101210212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39581.

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

Adding to 101210212123 its reverse (321212012101), we get a palindrome (422422224224).

The spelling of 101210212123 in words is "one hundred one billion, two hundred ten million, two hundred twelve thousand, one hundred twenty-three".