212430133405031 has 4 divisors (see below), whose sum is σ = 212513406686064. Its totient is φ = 212346860124000.

The previous prime is 212430133405001. The next prime is 212430133405067. The reversal of 212430133405031 is 130504331034212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212430133405031 is a prime.

It is a super-2 number, since 2×212430133405031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212430133405001) 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, 41636636690 + ... + 41636641791.

It is an arithmetic number, because the mean of its divisors is an integer number (53128351671516).

Almost surely, 2^{212430133405031} is an apocalyptic number.

212430133405031 is a deficient number, since it is larger than the sum of its proper divisors (83273281033).

212430133405031 is an equidigital number, since it uses as much as digits as its factorization.

212430133405031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83273281032.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 212430133405031 its reverse (130504331034212), we get a palindrome (342934464439243).

The spelling of 212430133405031 in words is "two hundred twelve trillion, four hundred thirty billion, one hundred thirty-three million, four hundred five thousand, thirty-one".