211123025512 has 64 divisors (see below), whose sum is σ = 468099648000. Its totient is φ = 87343904256.

The previous prime is 211123025501. The next prime is 211123025527. The reversal of 211123025512 is 215520321112.

It is a happy 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, 11126289 + ... + 11145247.

It is an arithmetic number, because the mean of its divisors is an integer number (7314057000).

Almost surely, 2^211123025512 is an apocalyptic number.

It is an amenable number.

211123025512 is an abundant number, since it is smaller than the sum of its proper divisors (256976622488).

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

211123025512 is a wasteful number, since it uses less digits than its factorization.

211123025512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25858 (or 25854 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 211123025512 its reverse (215520321112), we get a palindrome (426643346624).

The spelling of 211123025512 in words is "two hundred eleven billion, one hundred twenty-three million, twenty-five thousand, five hundred twelve".