212010312331 has 16 divisors (see below), whose sum is σ = 227044157760. Its totient is φ = 197265715200.

The previous prime is 212010312289. The next prime is 212010312343. The reversal of 212010312331 is 133213010212.

It is not a de Polignac number, because 212010312331 - 2¹⁵ = 212010279563 is a prime.

It is a super-2 number, since 2×212010312331² (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 = 212010312299 and 212010312308.

It is not an unprimeable number, because it can be changed into a prime (212010312431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1445481 + ... + 1585381.

It is an arithmetic number, because the mean of its divisors is an integer number (14190259860).

Almost surely, 2^212010312331 is an apocalyptic number.

212010312331 is a deficient number, since it is larger than the sum of its proper divisors (15033845429).

212010312331 is a wasteful number, since it uses less digits than its factorization.

212010312331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140934.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 212010312331 its reverse (133213010212), we get a palindrome (345223322543).

The spelling of 212010312331 in words is "two hundred twelve billion, ten million, three hundred twelve thousand, three hundred thirty-one".