211023430020344 has 16 divisors (see below), whose sum is σ = 395669113163520. Its totient is φ = 105511666510080.

The previous prime is 211023430020257. The next prime is 211023430020367. The reversal of 211023430020344 is 443020034320112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18088649 + ... + 27372359.

It is an arithmetic number, because the mean of its divisors is an integer number (24729319572720).

Almost surely, 2^{211023430020344} is an apocalyptic number.

It is an amenable number.

211023430020344 is a deficient number, since it is larger than the sum of its proper divisors (184645683143176).

211023430020344 is a wasteful number, since it uses less digits than its factorization.

211023430020344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12125030 (or 12125026 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 211023430020344 its reverse (443020034320112), we get a palindrome (654043464340456).

The spelling of 211023430020344 in words is "two hundred eleven trillion, twenty-three billion, four hundred thirty million, twenty thousand, three hundred forty-four".