211312241045 has 16 divisors (see below), whose sum is σ = 258047741952. Its totient is φ = 166090265280.

The previous prime is 211312240981. The next prime is 211312241051. The reversal of 211312241045 is 540142213112.

It is a happy number.

It is not a de Polignac number, because 211312241045 - 2⁶ = 211312240981 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1331477 + ... + 1481706.

It is an arithmetic number, because the mean of its divisors is an integer number (16127983872).

Almost surely, 2^211312241045 is an apocalyptic number.

It is an amenable number.

211312241045 is a deficient number, since it is larger than the sum of its proper divisors (46735500907).

211312241045 is a wasteful number, since it uses less digits than its factorization.

211312241045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813452.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 211312241045 its reverse (540142213112), we get a palindrome (751454454157).

The spelling of 211312241045 in words is "two hundred eleven billion, three hundred twelve million, two hundred forty-one thousand, forty-five".