212301220303031 has 4 divisors (see below), whose sum is σ = 214248937920600. Its totient is φ = 210353502685464.

The previous prime is 212301220302989. The next prime is 212301220303157. The reversal of 212301220303031 is 130303022103212.

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 212301220303031 - 2³⁰ = 212300146561207 is a prime.

It is a super-2 number, since 2×212301220303031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212301220302988 and 212301220303006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212309220303031) 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, 973858808621 + ... + 973858808838.

It is an arithmetic number, because the mean of its divisors is an integer number (53562234480150).

Almost surely, 2^{212301220303031} is an apocalyptic number.

212301220303031 is a deficient number, since it is larger than the sum of its proper divisors (1947717617569).

212301220303031 is a wasteful number, since it uses less digits than its factorization.

212301220303031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947717617568.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 212301220303031 its reverse (130303022103212), we get a palindrome (342604242406243).

The spelling of 212301220303031 in words is "two hundred twelve trillion, three hundred one billion, two hundred twenty million, three hundred three thousand, thirty-one".