212310303021031 has 4 divisors (see below), whose sum is σ = 212310812437632. Its totient is φ = 212309793604432.

The previous prime is 212310303021013. The next prime is 212310303021041. The reversal of 212310303021031 is 130120303013212.

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

It is a cyclic number.

It is not a de Polignac number, because 212310303021031 - 2¹³ = 212310303012839 is a prime.

It is a super-2 number, since 2×212310303021031² (a number of 29 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 = 212310303020993 and 212310303021011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212310303021001) 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, 254082631 + ... + 254916856.

It is an arithmetic number, because the mean of its divisors is an integer number (53077703109408).

Almost surely, 2^{212310303021031} is an apocalyptic number.

212310303021031 is a deficient number, since it is larger than the sum of its proper divisors (509416601).

212310303021031 is an equidigital number, since it uses as much as digits as its factorization.

212310303021031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509416600.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 212310303021031 its reverse (130120303013212), we get a palindrome (342430606034243).

The spelling of 212310303021031 in words is "two hundred twelve trillion, three hundred ten billion, three hundred three million, twenty-one thousand, thirty-one".