202031210212123 has 8 divisors (see below), whose sum is σ = 202092515773616. Its totient is φ = 201969913644000.

The previous prime is 202031210212103. The next prime is 202031210212133. The reversal of 202031210212123 is 321212012130202.

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-202031210212123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202031210212094 and 202031210212103.

It is not an unprimeable number, because it can be changed into a prime (202031210212103) 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, 42824353 + ... + 47307373.

It is an arithmetic number, because the mean of its divisors is an integer number (25261564471702).

Almost surely, 2^{202031210212123} is an apocalyptic number.

202031210212123 is a deficient number, since it is larger than the sum of its proper divisors (61305561493).

202031210212123 is an equidigital number, since it uses as much as digits as its factorization.

202031210212123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496685.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 202031210212123 its reverse (321212012130202), we get a palindrome (523243222342325).

The spelling of 202031210212123 in words is "two hundred two trillion, thirty-one billion, two hundred ten million, two hundred twelve thousand, one hundred twenty-three".