1125020531212 has 6 divisors (see below), whose sum is σ = 1968785929628. Its totient is φ = 562510265604.

The previous prime is 1125020531203. The next prime is 1125020531317. The reversal of 1125020531212 is 2121350205211.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140627566398 + ... + 140627566405.

Almost surely, 2^{1125020531212} is an apocalyptic number.

It is an amenable number.

1125020531212 is a deficient number, since it is larger than the sum of its proper divisors (843765398416).

1125020531212 is a wasteful number, since it uses less digits than its factorization.

1125020531212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281255132807 (or 281255132805 counting only the distinct ones).

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

Adding to 1125020531212 its reverse (2121350205211), we get a palindrome (3246370736423).

The spelling of 1125020531212 in words is "one trillion, one hundred twenty-five billion, twenty million, five hundred thirty-one thousand, two hundred twelve".