212130311213031 has 16 divisors (see below), whose sum is σ = 290130799670784. Its totient is φ = 137801525606144.

The previous prime is 212130311212993. The next prime is 212130311213063. The reversal of 212130311213031 is 130312113031212.

It is a cyclic number.

It is not a de Polignac number, because 212130311213031 - 2²⁵ = 212130277658599 is a prime.

It is a super-2 number, since 2×212130311213031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212130311212992 and 212130311213010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212130311212031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3313779210 + ... + 3313843223.

It is an arithmetic number, because the mean of its divisors is an integer number (18133174979424).

Almost surely, 2^{212130311213031} is an apocalyptic number.

212130311213031 is a deficient number, since it is larger than the sum of its proper divisors (78000488457753).

212130311213031 is a wasteful number, since it uses less digits than its factorization.

212130311213031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6627622710.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 212130311213031 its reverse (130312113031212), we get a palindrome (342442424244243).

The spelling of 212130311213031 in words is "two hundred twelve trillion, one hundred thirty billion, three hundred eleven million, two hundred thirteen thousand, thirty-one".