212003100123 has 8 divisors (see below), whose sum is σ = 284896555008. Its totient is φ = 140222522664.

The previous prime is 212003100109. The next prime is 212003100137. The reversal of 212003100123 is 321001300212.

It is an interprime number because it is at equal distance from previous prime (212003100109) and next prime (212003100137).

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

It is not a de Polignac number, because 212003100123 - 2¹⁶ = 212003034587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212003100103) 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, 278218911 + ... + 278219672.

It is an arithmetic number, because the mean of its divisors is an integer number (35612069376).

Almost surely, 2^212003100123 is an apocalyptic number.

212003100123 is a deficient number, since it is larger than the sum of its proper divisors (72893454885).

212003100123 is a wasteful number, since it uses less digits than its factorization.

212003100123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556438713.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 212003100123 its reverse (321001300212), we get a palindrome (533004400335).

The spelling of 212003100123 in words is "two hundred twelve billion, three million, one hundred thousand, one hundred twenty-three".