212402320031 has 16 divisors (see below), whose sum is σ = 238935142656. Its totient is φ = 187135800000.

The previous prime is 212402320019. The next prime is 212402320043. The reversal of 212402320031 is 130023204212.

212402320031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212402320019) and next prime (212402320043).

It is a cyclic number.

It is not a de Polignac number, because 212402320031 - 2¹⁰ = 212402319007 is a prime.

It is a super-2 number, since 2×212402320031² (a number of 23 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 = 212402319985 and 212402320012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212402320001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1491365 + ... + 1627566.

It is an arithmetic number, because the mean of its divisors is an integer number (14933446416).

Almost surely, 2^212402320031 is an apocalyptic number.

212402320031 is a deficient number, since it is larger than the sum of its proper divisors (26532822625).

212402320031 is a wasteful number, since it uses less digits than its factorization.

212402320031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119134.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212402320031 its reverse (130023204212), we get a palindrome (342425524243).

The spelling of 212402320031 in words is "two hundred twelve billion, four hundred two million, three hundred twenty thousand, thirty-one".