210031311434 has 32 divisors (see below), whose sum is σ = 362021584896. Its totient is φ = 89521660080.

The previous prime is 210031311421. The next prime is 210031311443. The reversal of 210031311434 is 434113130012.

It is a super-2 number, since 2×210031311434² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20068487 + ... + 20078949.

It is an arithmetic number, because the mean of its divisors is an integer number (11313174528).

Almost surely, 2^210031311434 is an apocalyptic number.

210031311434 is a deficient number, since it is larger than the sum of its proper divisors (151990273462).

210031311434 is a wasteful number, since it uses less digits than its factorization.

210031311434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18170.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 210031311434 its reverse (434113130012), we get a palindrome (644144441446).

The spelling of 210031311434 in words is "two hundred ten billion, thirty-one million, three hundred eleven thousand, four hundred thirty-four".