1125075011378 has 4 divisors (see below), whose sum is σ = 1687612517070. Its totient is φ = 562537505688.

The previous prime is 1125075011371. The next prime is 1125075011381. The reversal of 1125075011378 is 8731105705211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1042394034529 + 82680976849 = 1020977^2 + 287543^2 .

It is not an unprimeable number, because it can be changed into a prime (1125075011371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281268752843 + ... + 281268752846.

Almost surely, 2^{1125075011378} is an apocalyptic number.

1125075011378 is a deficient number, since it is larger than the sum of its proper divisors (562537505692).

1125075011378 is an equidigital number, since it uses as much as digits as its factorization.

1125075011378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562537505691.

The product of its (nonzero) digits is 58800, while the sum is 41.

The spelling of 1125075011378 in words is "one trillion, one hundred twenty-five billion, seventy-five million, eleven thousand, three hundred seventy-eight".