1011232125 has 24 divisors (see below), whose sum is σ = 1822916472. Its totient is φ = 539323200.

The previous prime is 1011232111. The next prime is 1011232127. The reversal of 1011232125 is 5212321101.

It can be written as a sum of positive squares in 4 ways, for example, as 27657081 + 983575044 = 5259^2 + 31362^2 .

It is not a de Polignac number, because 1011232125 - 2¹⁴ = 1011215741 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1011232098 and 1011232107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011232127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 448312 + ... + 450561.

It is an arithmetic number, because the mean of its divisors is an integer number (75954853).

Almost surely, 2^1011232125 is an apocalyptic number.

1011232125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011232125 is a deficient number, since it is larger than the sum of its proper divisors (811684347).

1011232125 is an equidigital number, since it uses as much as digits as its factorization.

1011232125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898894 (or 898881 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1011232125 is about 31799.8761790042. The cubic root of 1011232125 is about 1003.7301106414.

Adding to 1011232125 its reverse (5212321101), we get a palindrome (6223553226).

The spelling of 1011232125 in words is "one billion, eleven million, two hundred thirty-two thousand, one hundred twenty-five".