212023102331 has 4 divisors (see below), whose sum is σ = 223182213000. Its totient is φ = 200863991664.

The previous prime is 212023102301. The next prime is 212023102351. The reversal of 212023102331 is 133201320212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212023102331 - 2²² = 212018908027 is a prime.

It is a super-2 number, since 2×212023102331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212023102301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5579555306 + ... + 5579555343.

It is an arithmetic number, because the mean of its divisors is an integer number (55795553250).

Almost surely, 2^212023102331 is an apocalyptic number.

212023102331 is a deficient number, since it is larger than the sum of its proper divisors (11159110669).

212023102331 is a wasteful number, since it uses less digits than its factorization.

212023102331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11159110668.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212023102331 its reverse (133201320212), we get a palindrome (345224422543).

The spelling of 212023102331 in words is "two hundred twelve billion, twenty-three million, one hundred two thousand, three hundred thirty-one".