212013100031 has 2 divisors, whose sum is σ = 212013100032. Its totient is φ = 212013100030.

The previous prime is 212013100003. The next prime is 212013100109. The reversal of 212013100031 is 130001310212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212013100031 is a prime.

It is a super-2 number, since 2×212013100031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212013099979 and 212013100015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212013100231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006550015 + 106006550016.

It is an arithmetic number, because the mean of its divisors is an integer number (106006550016).

Almost surely, 2^212013100031 is an apocalyptic number.

212013100031 is a deficient number, since it is larger than the sum of its proper divisors (1).

212013100031 is an equidigital number, since it uses as much as digits as its factorization.

212013100031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 212013100031 its reverse (130001310212), we get a palindrome (342014410243).

The spelling of 212013100031 in words is "two hundred twelve billion, thirteen million, one hundred thousand, thirty-one".