1012152523 has 4 divisors (see below), whose sum is σ = 1016352568. Its totient is φ = 1007952480.

The previous prime is 1012152509. The next prime is 1012152539. The reversal of 1012152523 is 3252512101.

1012152523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012152523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012152494 and 1012152503.

It is not an unprimeable number, because it can be changed into a prime (1012152593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2099661 + ... + 2100142.

It is an arithmetic number, because the mean of its divisors is an integer number (254088142).

Almost surely, 2^1012152523 is an apocalyptic number.

1012152523 is a deficient number, since it is larger than the sum of its proper divisors (4200045).

1012152523 is an equidigital number, since it uses as much as digits as its factorization.

1012152523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200044.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1012152523 is about 31814.3446105684. The cubic root of 1012152523 is about 1004.0345415834.

Adding to 1012152523 its reverse (3252512101), we get a palindrome (4264664624).

The spelling of 1012152523 in words is "one billion, twelve million, one hundred fifty-two thousand, five hundred twenty-three".