211331303311434 has 64 divisors (see below), whose sum is σ = 446068074816000. Its totient is φ = 66562203470400.

The previous prime is 211331303311393. The next prime is 211331303311537. The reversal of 211331303311434 is 434113303133112.

It is a junction number, because it is equal to n+sod(n) for n = 211331303311395 and 211331303311404.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1501086057 + ... + 1501226835.

It is an arithmetic number, because the mean of its divisors is an integer number (6969813669000).

Almost surely, 2^{211331303311434} is an apocalyptic number.

211331303311434 is an abundant number, since it is smaller than the sum of its proper divisors (234736771504566).

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

211331303311434 is a wasteful number, since it uses less digits than its factorization.

211331303311434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175043.

The product of its (nonzero) digits is 23328, while the sum is 33.

Adding to 211331303311434 its reverse (434113303133112), we get a palindrome (645444606444546).

The spelling of 211331303311434 in words is "two hundred eleven trillion, three hundred thirty-one billion, three hundred three million, three hundred eleven thousand, four hundred thirty-four".