211523045045 has 32 divisors (see below), whose sum is σ = 283906062720. Its totient is φ = 150214176000.

The previous prime is 211523045011. The next prime is 211523045081. The reversal of 211523045045 is 540540325112.

It is not a de Polignac number, because 211523045045 - 2⁶ = 211523044981 is a prime.

It is a congruent number.

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, 249602 + ... + 696668.

It is an arithmetic number, because the mean of its divisors is an integer number (8872064460).

Almost surely, 2^211523045045 is an apocalyptic number.

It is an amenable number.

211523045045 is a deficient number, since it is larger than the sum of its proper divisors (72383017675).

211523045045 is a wasteful number, since it uses less digits than its factorization.

211523045045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447365.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 211523045045 in words is "two hundred eleven billion, five hundred twenty-three million, forty-five thousand, forty-five".