212323301031 has 32 divisors (see below), whose sum is σ = 314715075840. Its totient is φ = 126708696576.

The previous prime is 212323301027. The next prime is 212323301081. The reversal of 212323301031 is 130103323212.

It is not a de Polignac number, because 212323301031 - 2² = 212323301027 is a prime.

It is a super-2 number, since 2×212323301031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212323300989 and 212323301007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212323301081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 972241 + ... + 1170426.

It is an arithmetic number, because the mean of its divisors is an integer number (9834846120).

Almost surely, 2^212323301031 is an apocalyptic number.

212323301031 is a deficient number, since it is larger than the sum of its proper divisors (102391774809).

212323301031 is a wasteful number, since it uses less digits than its factorization.

212323301031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142783.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 212323301031 its reverse (130103323212), we get a palindrome (342426624243).

The spelling of 212323301031 in words is "two hundred twelve billion, three hundred twenty-three million, three hundred one thousand, thirty-one".