211431242310 has 32 divisors (see below), whose sum is σ = 507535649280. Its totient is φ = 56370479328.

The previous prime is 211431242303. The next prime is 211431242311. The reversal of 211431242310 is 13242134112.

It is a super-2 number, since 2×211431242310² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211431242311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544782 + ... + 848321.

It is an arithmetic number, because the mean of its divisors is an integer number (15860489040).

Almost surely, 2^211431242310 is an apocalyptic number.

211431242310 is an abundant number, since it is smaller than the sum of its proper divisors (296104406970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211431242310 is a wasteful number, since it uses less digits than its factorization.

211431242310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398172.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 211431242310 its reverse (13242134112), we get a palindrome (224673376422).

The spelling of 211431242310 in words is "two hundred eleven billion, four hundred thirty-one million, two hundred forty-two thousand, three hundred ten".