1012523121 has 24 divisors (see below), whose sum is σ = 1484887040. Its totient is φ = 664778016.

The previous prime is 1012523087. The next prime is 1012523143. The reversal of 1012523121 is 1213252101.

1012523121 is a `hidden beast` number, since 10 + 12 + 523 + 121 = 666.

1012523121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1012523121 - 2⁷ = 1012522993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012523094 and 1012523103.

It is not an unprimeable number, because it can be changed into a prime (1012523521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155691 + ... + 162063.

Almost surely, 2^1012523121 is an apocalyptic number.

It is an amenable number.

1012523121 is a deficient number, since it is larger than the sum of its proper divisors (472363919).

1012523121 is a wasteful number, since it uses less digits than its factorization.

1012523121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6645 (or 6642 counting only the distinct ones).

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

The square root of 1012523121 is about 31820.1684627847. The cubic root of 1012523121 is about 1004.1570685017.

Adding to 1012523121 its reverse (1213252101), we get a palindrome (2225775222).

The spelling of 1012523121 in words is "one billion, twelve million, five hundred twenty-three thousand, one hundred twenty-one".